Data compiled at 1:100,000 scale.
Connecticut Route Segments is a 1:100,000-scale, feature-based layer developed for the purpose of creating the Connecticut Routes layer. The Connecticut Route Segments layer includes Interstate Highways, US Routes, State Routes and route connectors in Connecticut based on information from the U.S Bureau of Census that was published for Connecticut by the University of Connecticut, Center for Geographic Information and Analysis. The Connecticut Route Segments layer details a network of automobile route segments and represents individual Interstate Highways, US Routes, State Routes and connectors as sets of connecting and intersecting line features. Individual line features begin and end at intersections with other routes. Attributes include route class and route number for each line feature (route segment). Types of route class include Interstate Highway, US Route, State Route, and connectors. In order to reflect the complexity of the route network where routes occasionally merge together and share the same line features at bridge crossings or through metropolitan areas, a single line feature may depict the location of up to five different routes. The Connecticut Route Segments layer is based on information compiled for the year 2000 and may not necessarily depict current conditions. The layer does not include local roads, highway entrance and exit ramps, highway rest areas, exit numbers, house address, traffic direction, or traffic volume information. Features are linear and represent divided and undivided route centerlines mapped at 1:100,000 scale (1 inch = 1.578 mile).
Connecticut Route Segments is an intermediate spatial data product developed for the purpose of creating, maintaining, and updating the 1:100,000-scale Connecticut Routes layer. The line feature topology and attribute information are designed to support an automated process with ArcView 3.3 that creates the Connecticut Routes layer. The Connecticut Route Segments layer has no other known purpose. Nevertheless, it may have potential value in other applications due to the quality and accuracy of the route class and number attribute information that was carefully attributed, checked and compared with Connecticut State Tourism Map 2002-2003 published by the Connecticut Department of Transportation. Use the derivative product, the Connecticut Routes layer, to cartographically depict routes with highway and route number shields on a map. Each route in the Connecticut Routes layer is depicted as a continuous, non-intersecting line feature that is the result of merging (appending) line features from the Connecticut Route Segments layer.
The ArcView 3.3 Avenue Script that creates the Connecticut Routes shapefile from the Connecticut Route Segments shapefile is named zViewMakeRoutes.txt and is included with the Connecticut Route Segments shapefiile download from the State of Connecticut, Department of Environmental Protection Website. This script merges all linear segments that comprise each route in the Connecticut Route Segments shapefile into a single, continuous linear feature for the Connecticut Routes shapefile.
The Connecticut Routes Segments layer is derived from the Connecticut Street Network State Plane, TIGER/Line 2000 layer, which was compiled and published by Ellen Cromley and Richard Mrozinski from the University of Connecticut, Center for Geographic Information and Analysis.
79 Elm Street
ground condition
None. The data is in the public domain and may be redistributed.
None. There are no restrictions or legal prerequisites for using the data. Once acquired, any modification made to the data must be noted in the metadata. When printing this information on a map or using it in a software application, please acknowledge the State of Connecticut, Department of Environmental Protection; University of Connecticut, Center for Geographic Information Analysis; and U.S. Bureau of Census as the original source for this information. For example, include the following data source description when printing this layer on a map: Roads - From the Connecticut Route Segments layer, compiled and published by CT DEP, UCONN and Census. Source map scale is 1:100,000.
Boundary | Coordinate |
---|---|
Left | 733465.749973 (survey feet) |
Right | 1262562.874848 (survey feet) |
Top | 944223.374983 (survey feet) |
Bottom | 559676.312386 (survey feet) |
Boundary | Coordinate |
---|---|
West | -73.731296 (longitude) |
East | -71.783324 (longitude) |
North | 42.052459 (latitude) |
South | 40.993031 (latitude) |
Includes linear route features such as highways, routes, and connectors. Information encoded about features includes route class and number.
Other than the metadata for the Connecticut Routes layer, the information in this metadata document is the only reference that describes the Connecticut Route Segment entities and attributes.
Route segments as line features
State of Connecticut, Department of Environmental Protection; University of Connecticut, Center for Geographic Information and Analysis; and U.S. Department of Commerce, U.S. Census Bureau, Geography Division
Name of connector if the CLASS1 attribute value is Connector.
Value | Definition |
---|---|
Bradley International Airport Connector |
Bradley International Airport Connector |
Definition Source: CT DEP, CT DOT | |
Branford Connector |
Branford Connector |
Definition Source: CT DEP, CT DOT | |
Hammonasset Connector |
Hammonasset Connector |
Definition Source: CT DEP, CT DOT | |
Milford Parkway |
Milford Parkway |
Definition Source: CT DEP, CT DOT | |
Montville Connector |
Montville Connector |
Definition Source: CT DEP, CT DOT | |
Rocky Neck Connector |
Rocky Neck Connector |
Definition Source: CT DEP, CT DOT | |
Route 6 Connector |
Route 6 Connector |
Definition Source: CT DEP, CT DOT | |
Route 9 Connector |
Route 9 Connector |
Definition Source: CT DEP, CT DOT | |
Sherwood Island Connector |
Sherwood Island Connector |
Definition Source: CT DEP, CT DOT | |
Wharton Brook Connector |
Wharton Brook Connector |
Definition Source: CT DEP, CT DOT |
State of Connecticut, Department of Environmental Protection
Feature geometry.
ESRI
Text field for symbolizing road types on a map.
Value | Definition |
---|---|
Interstate |
Interstate Highways such as Interstate 95 that are typically symbolized with a wide red or blue line |
Definition Source: CT DEP, CT DOT | |
US Route |
US Routes such as US Route 1 that are typically symbolized with a medium width red line |
Definition Source: CT DEP, CT DOT | |
State Route |
State Routes such as State Route 2 that are typically symbolized with a narrow width red line |
Definition Source: CT DEP, CT DOT | |
Connector |
Connectors such as the Hammonasset Connector that are typically symbolized with a narrow black or grey line |
Definition Source: CT DEP, CT DOT |
State of Connecticut, Department of Environmental Protection
Class for ROUTE1. This field value modifies and describes the type of route specified in the ROUTE1 field. If the value is Connector, this field does not describe the type of route specified in the ROUTE1 field but rather indicates the route segment is a connector whose name is specified in the NAME field.
Value | Definition |
---|---|
Connector |
For route segments that are connectors with values in the NAME field. |
Definition Source: CT DEP, CT DOT | |
Interstate |
For route segments that are Interstates such as Interstate 84. |
Definition Source: CT DEP, CT DOT | |
State Route |
For route segments that are State Routes such as State Route 3. |
Definition Source: CT DEP, CT DOT | |
US Route |
For route segments that are US Routes such as US Route 1A. |
Definition Source: CT DEP, CT DOT |
State of Connecticut, Department of Environmental Protection
Route for CLASS1. This field value indicates the route number for the type of route specified in the CLASS1 field.
Value | Definition |
---|---|
1A |
US Route 1A |
Definition Source: CT DEP, CT DOT | |
3 |
State Route 3 |
Definition Source: CT DEP, CT DOT | |
4 |
State Route 4 |
Definition Source: CT DEP, CT DOT | |
5 |
US Route 5 |
Definition Source: CT DEP, CT DOT | |
9 |
State Route 9 |
Definition Source: CT DEP, CT DOT | |
11 |
State Route 11 |
Definition Source: CT DEP, CT DOT | |
12 |
State Route 12 |
Definition Source: CT DEP, CT DOT | |
16 |
State Route 16 |
Definition Source: CT DEP, CT DOT | |
17A |
State Route 17A |
Definition Source: CT DEP, CT DOT | |
19 |
State Route 19 |
Definition Source: CT DEP, CT DOT | |
20 |
State Route 20 |
Definition Source: CT DEP, CT DOT | |
21 |
State Route 21 |
Definition Source: CT DEP, CT DOT | |
27 |
State Route 27 |
Definition Source: CT DEP, CT DOT | |
30 |
State Route 30 |
Definition Source: CT DEP, CT DOT | |
31 |
State Route 31 |
Definition Source: CT DEP, CT DOT | |
35 |
State Route 35 |
Definition Source: CT DEP, CT DOT | |
37 |
State Route 37 |
Definition Source: CT DEP, CT DOT | |
40 |
State Route 40 |
Definition Source: CT DEP, CT DOT | |
41 |
State Route 41 |
Definition Source: CT DEP, CT DOT | |
43 |
State Route 43 |
Definition Source: CT DEP, CT DOT | |
53 |
State Route 53 |
Definition Source: CT DEP, CT DOT | |
55 |
State Route 55 |
Definition Source: CT DEP, CT DOT | |
58 |
State Route 58 |
Definition Source: CT DEP, CT DOT | |
59 |
State Route 59 |
Definition Source: CT DEP, CT DOT | |
61 |
State Route 61 |
Definition Source: CT DEP, CT DOT | |
63 |
State Route 63 |
Definition Source: CT DEP, CT DOT | |
66 |
State Route 66 |
Definition Source: CT DEP, CT DOT | |
68 |
State Route 68 |
Definition Source: CT DEP, CT DOT | |
71 |
State Route 71 |
Definition Source: CT DEP, CT DOT | |
71A |
State Route 71A |
Definition Source: CT DEP, CT DOT | |
73 |
State Route 73 |
Definition Source: CT DEP, CT DOT | |
75 |
State Route 75 |
Definition Source: CT DEP, CT DOT | |
77 |
State Route 77 |
Definition Source: CT DEP, CT DOT | |
78 |
State Route 78 |
Definition Source: CT DEP, CT DOT | |
79 |
State Route 79 |
Definition Source: CT DEP, CT DOT | |
80 |
State Route 80 |
Definition Source: CT DEP, CT DOT | |
84 |
Interstate 84 |
Definition Source: CT DEP, CT DOT | |
87 |
State Route 87 |
Definition Source: CT DEP, CT DOT | |
89 |
State Route 89 |
Definition Source: CT DEP, CT DOT | |
91 |
Interstate 91 |
Definition Source: CT DEP, CT DOT | |
94 |
State Route 94 |
Definition Source: CT DEP, CT DOT | |
95 |
Interstate 95 |
Definition Source: CT DEP, CT DOT | |
97 |
State Route 97 |
Definition Source: CT DEP, CT DOT | |
99 |
State Route 99 |
Definition Source: CT DEP, CT DOT | |
100 |
State Route 100 |
Definition Source: CT DEP, CT DOT | |
101 |
State Route 101 |
Definition Source: CT DEP, CT DOT | |
103 |
State Route 103 |
Definition Source: CT DEP, CT DOT | |
106 |
State Route 106 |
Definition Source: CT DEP, CT DOT | |
108 |
State Route 108 |
Definition Source: CT DEP, CT DOT | |
109 |
State Route 109 |
Definition Source: CT DEP, CT DOT | |
110 |
State Route 110 |
Definition Source: CT DEP, CT DOT | |
111 |
State Route 111 |
Definition Source: CT DEP, CT DOT | |
112 |
State Route 112 |
Definition Source: CT DEP, CT DOT | |
113 |
State Route 113 |
Definition Source: CT DEP, CT DOT | |
114 |
State Route 114 |
Definition Source: CT DEP, CT DOT | |
115 |
State Route 115 |
Definition Source: CT DEP, CT DOT | |
116 |
State Route 116 |
Definition Source: CT DEP, CT DOT | |
117 |
State Route 117 |
Definition Source: CT DEP, CT DOT | |
118 |
State Route 118 |
Definition Source: CT DEP, CT DOT | |
120 |
State Route 120 |
Definition Source: CT DEP, CT DOT | |
121 |
State Route 121 |
Definition Source: CT DEP, CT DOT | |
122 |
State Route 122 |
Definition Source: CT DEP, CT DOT | |
123 |
State Route 123 |
Definition Source: CT DEP, CT DOT | |
125 |
State Route 125 |
Definition Source: CT DEP, CT DOT | |
126 |
State Route 126 |
Definition Source: CT DEP, CT DOT | |
127 |
State Route 127 |
Definition Source: CT DEP, CT DOT | |
128 |
State Route 128 |
Definition Source: CT DEP, CT DOT | |
130 |
State Route 130 |
Definition Source: CT DEP, CT DOT | |
131 |
State Route 131 |
Definition Source: CT DEP, CT DOT | |
132 |
State Route 132 |
Definition Source: CT DEP, CT DOT | |
133 |
State Route 133 |
Definition Source: CT DEP, CT DOT | |
135 |
State Route 135 |
Definition Source: CT DEP, CT DOT | |
136 |
State Route 136 |
Definition Source: CT DEP, CT DOT | |
137 |
State Route 137 |
Definition Source: CT DEP, CT DOT | |
139 |
State Route 139 |
Definition Source: CT DEP, CT DOT | |
140 |
State Route 140 |
Definition Source: CT DEP, CT DOT | |
142 |
State Route 142 |
Definition Source: CT DEP, CT DOT | |
146 |
State Route 146 |
Definition Source: CT DEP, CT DOT | |
148 |
State Route 148 |
Definition Source: CT DEP, CT DOT | |
149 |
State Route 149 |
Definition Source: CT DEP, CT DOT | |
150 |
State Route 150 |
Definition Source: CT DEP, CT DOT | |
152 |
State Route 152 |
Definition Source: CT DEP, CT DOT | |
153 |
State Route 153 |
Definition Source: CT DEP, CT DOT | |
154 |
State Route 154 |
Definition Source: CT DEP, CT DOT | |
155 |
State Route 155 |
Definition Source: CT DEP, CT DOT | |
156 |
State Route 156 |
Definition Source: CT DEP, CT DOT | |
157 |
State Route 157 |
Definition Source: CT DEP, CT DOT | |
161 |
State Route 161 |
Definition Source: CT DEP, CT DOT | |
162 |
State Route 162 |
Definition Source: CT DEP, CT DOT | |
163 |
State Route 163 |
Definition Source: CT DEP, CT DOT | |
164 |
State Route 164 |
Definition Source: CT DEP, CT DOT | |
166 |
State Route 166 |
Definition Source: CT DEP, CT DOT | |
167 |
State Route 167 |
Definition Source: CT DEP, CT DOT | |
168 |
State Route 168 |
Definition Source: CT DEP, CT DOT | |
171 |
State Route 171 |
Definition Source: CT DEP, CT DOT | |
172 |
State Route 172 |
Definition Source: CT DEP, CT DOT | |
173 |
State Route 173 |
Definition Source: CT DEP, CT DOT | |
174 |
State Route 174 |
Definition Source: CT DEP, CT DOT | |
175 |
State Route 175 |
Definition Source: CT DEP, CT DOT | |
176 |
State Route 176 |
Definition Source: CT DEP, CT DOT | |
178 |
State Route 178 |
Definition Source: CT DEP, CT DOT | |
179 |
State Route 179 |
Definition Source: CT DEP, CT DOT | |
181 |
State Route 181 |
Definition Source: CT DEP, CT DOT | |
182 |
State Route 182 |
Definition Source: CT DEP, CT DOT | |
183 |
State Route 183 |
Definition Source: CT DEP, CT DOT | |
184 |
State Route 184 |
Definition Source: CT DEP, CT DOT | |
185 |
State Route 185 |
Definition Source: CT DEP, CT DOT | |
186 |
State Route 186 |
Definition Source: CT DEP, CT DOT | |
188 |
State Route 188 |
Definition Source: CT DEP, CT DOT | |
190 |
State Route 190 |
Definition Source: CT DEP, CT DOT | |
192 |
State Route 192 |
Definition Source: CT DEP, CT DOT | |
193 |
State Route 193 |
Definition Source: CT DEP, CT DOT | |
194 |
State Route 194 |
Definition Source: CT DEP, CT DOT | |
195 |
State Route 195 |
Definition Source: CT DEP, CT DOT | |
196 |
State Route 196 |
Definition Source: CT DEP, CT DOT | |
197 |
State Route 197 |
Definition Source: CT DEP, CT DOT | |
182A |
State Route 182A |
Definition Source: CT DEP, CT DOT | |
199 |
State Route 199 |
Definition Source: CT DEP, CT DOT | |
200 |
State Route 200 |
Definition Source: CT DEP, CT DOT | |
203 |
State Route 203 |
Definition Source: CT DEP, CT DOT | |
205 |
State Route 205 |
Definition Source: CT DEP, CT DOT | |
207 |
State Route 207 |
Definition Source: CT DEP, CT DOT | |
209 |
State Route 209 |
Definition Source: CT DEP, CT DOT | |
213 |
State Route 213 |
Definition Source: CT DEP, CT DOT | |
214 |
State Route 214 |
Definition Source: CT DEP, CT DOT | |
215 |
State Route 215 |
Definition Source: CT DEP, CT DOT | |
216 |
State Route 216 |
Definition Source: CT DEP, CT DOT | |
217 |
State Route 217 |
Definition Source: CT DEP, CT DOT | |
220 |
State Route 220 |
Definition Source: CT DEP, CT DOT | |
222 |
State Route 222 |
Definition Source: CT DEP, CT DOT | |
229 |
State Route 229 |
Definition Source: CT DEP, CT DOT | |
234 |
State Route 234 |
Definition Source: CT DEP, CT DOT | |
243 |
State Route 243 |
Definition Source: CT DEP, CT DOT | |
244 |
State Route 244 |
Definition Source: CT DEP, CT DOT | |
254 |
State Route 254 |
Definition Source: CT DEP, CT DOT | |
262 |
State Route 262 |
Definition Source: CT DEP, CT DOT | |
263 |
State Route 263 |
Definition Source: CT DEP, CT DOT | |
272 |
State Route 272 |
Definition Source: CT DEP, CT DOT | |
275 |
State Route 275 |
Definition Source: CT DEP, CT DOT | |
286 |
State Route 286 |
Definition Source: CT DEP, CT DOT | |
289 |
State Route 289 |
Definition Source: CT DEP, CT DOT | |
291 |
Interstate 291 |
Definition Source: CT DEP, CT DOT | |
302 |
State Route 302 |
Definition Source: CT DEP, CT DOT | |
305 |
State Route 305 |
Definition Source: CT DEP, CT DOT | |
309 |
State Route 309 |
Definition Source: CT DEP, CT DOT | |
313 |
State Route 313 |
Definition Source: CT DEP, CT DOT | |
314 |
State Route 314 |
Definition Source: CT DEP, CT DOT | |
315 |
State Route 315 |
Definition Source: CT DEP, CT DOT | |
316 |
State Route 316 |
Definition Source: CT DEP, CT DOT | |
317 |
State Route 317 |
Definition Source: CT DEP, CT DOT | |
319 |
State Route 319 |
Definition Source: CT DEP, CT DOT | |
322 |
State Route 322 |
Definition Source: CT DEP, CT DOT | |
334 |
State Route 334 |
Definition Source: CT DEP, CT DOT | |
337 |
State Route 337 |
Definition Source: CT DEP, CT DOT | |
341 |
State Route 341 |
Definition Source: CT DEP, CT DOT | |
343 |
State Route 343 |
Definition Source: CT DEP, CT DOT | |
349 |
State Route 349 |
Definition Source: CT DEP, CT DOT | |
354 |
State Route 354 |
Definition Source: CT DEP, CT DOT | |
361 |
State Route 361 |
Definition Source: CT DEP, CT DOT | |
364 |
State Route 364 |
Definition Source: CT DEP, CT DOT | |
384 |
Interstate 384 |
Definition Source: CT DEP, CT DOT | |
395 |
Interstate 395 |
Definition Source: CT DEP, CT DOT | |
684 |
Interstate 684 |
Definition Source: CT DEP, CT DOT | |
691 |
Interstate 691 |
Definition Source: CT DEP, CT DOT | |
835 |
State Route 835 |
Definition Source: CT DEP, CT DOT |
State of Connecticut, Department of Environmental Protection
Class for ROUTE2. This field value modifies and describes the type of route specified in the ROUTE2 field.
Value | Definition |
---|---|
State Route |
For route segments that are State Routes such as US Route 2A. |
Definition Source: CT DEP, CT DOT | |
US Route |
For route segments that are US Routes such as US Route 1. |
Definition Source: CT DEP, CT DOT |
State of Connecticut, Department of Environmental Protection
Route for CLASS2. This field value indicates the route number for the type of route specified in the CLASS2 field.
Value | Definition |
---|---|
1 |
US Route 1 |
Definition Source: CT DEP, CT DOT | |
2A |
State Route 2A |
Definition Source: CT DEP, CT DOT | |
8 |
State Route 8 |
Definition Source: CT DEP, CT DOT | |
14 |
State Route 14 |
Definition Source: CT DEP, CT DOT | |
14A |
State Route 14A |
Definition Source: CT DEP, CT DOT | |
15 |
State Route 15 |
Definition Source: CT DEP, CT DOT | |
17 |
State Route 17 |
Definition Source: CT DEP, CT DOT | |
32 |
State Route 32 |
Definition Source: CT DEP, CT DOT | |
33 |
State Route 33 |
Definition Source: CT DEP, CT DOT | |
34 |
State Route 34 |
Definition Source: CT DEP, CT DOT | |
39 |
State Route 39 |
Definition Source: CT DEP, CT DOT | |
42 |
State Route 42 |
Definition Source: CT DEP, CT DOT | |
45 |
State Route 45 |
Definition Source: CT DEP, CT DOT | |
47 |
State Route 47 |
Definition Source: CT DEP, CT DOT | |
57 |
State Route 57 |
Definition Source: CT DEP, CT DOT | |
64 |
State Route 64 |
Definition Source: CT DEP, CT DOT | |
67 |
State Route 67 |
Definition Source: CT DEP, CT DOT | |
69 |
State Route 69 |
Definition Source: CT DEP, CT DOT | |
70 |
State Route 70 |
Definition Source: CT DEP, CT DOT | |
72 |
State Route 72 |
Definition Source: CT DEP, CT DOT | |
81 |
State Route 81 |
Definition Source: CT DEP, CT DOT | |
82 |
State Route 82 |
Definition Source: CT DEP, CT DOT | |
83 |
State Route 83 |
Definition Source: CT DEP, CT DOT | |
85 |
State Route 85 |
Definition Source: CT DEP, CT DOT | |
102 |
State Route 102 |
Definition Source: CT DEP, CT DOT | |
104 |
State Route 104 |
Definition Source: CT DEP, CT DOT | |
107 |
State Route 107 |
Definition Source: CT DEP, CT DOT | |
124 |
State Route 124 |
Definition Source: CT DEP, CT DOT | |
145 |
State Route 145 |
Definition Source: CT DEP, CT DOT | |
147 |
State Route 147 |
Definition Source: CT DEP, CT DOT | |
151 |
State Route 151 |
Definition Source: CT DEP, CT DOT | |
159 |
State Route 159 |
Definition Source: CT DEP, CT DOT | |
160 |
State Route 160 |
Definition Source: CT DEP, CT DOT | |
165 |
State Route 165 |
Definition Source: CT DEP, CT DOT | |
177 |
State Route 177 |
Definition Source: CT DEP, CT DOT | |
191 |
State Route 191 |
Definition Source: CT DEP, CT DOT | |
198 |
State Route 198 |
Definition Source: CT DEP, CT DOT | |
201 |
State Route 201 |
Definition Source: CT DEP, CT DOT | |
202 |
US Route 202 |
Definition Source: CT DEP, CT DOT | |
218 |
State Route 218 |
Definition Source: CT DEP, CT DOT | |
219 |
State Route 219 |
Definition Source: CT DEP, CT DOT | |
318 |
State Route 318 |
Definition Source: CT DEP, CT DOT | |
320 |
State Route 320 |
Definition Source: CT DEP, CT DOT | |
372 |
State Route 372 |
Definition Source: CT DEP, CT DOT |
State of Connecticut, Department of Environmental Protection
Class for ROUTE3. This field value modifies and describes the type of route specified in the ROUTE3 field.
Value | Definition |
---|---|
State Route |
For route segments that are State Routes such as State Route 2. |
Definition Source: CT DEP, CT DOT | |
US Route |
For route segments that are US Routes such as US Route 7. |
Definition Source: CT DEP, CT DOT |
State of Connecticut, Department of Environmental Protection
Route for CLASS3. This field value indicates the route number for the type of route specified in the CLASS3 field.
Value | Definition |
---|---|
2 |
State Route 2 |
Definition Source: CT DEP, CT DOT | |
7 |
US Route 7 |
Definition Source: CT DEP, CT DOT | |
10 |
State Route 10 |
Definition Source: CT DEP, CT DOT | |
22 |
State Route 22 |
Definition Source: CT DEP, CT DOT | |
25 |
State Route 25 |
Definition Source: CT DEP, CT DOT | |
41 |
State Route 41 |
Definition Source: CT DEP, CT DOT | |
49 |
State Route 49 |
Definition Source: CT DEP, CT DOT | |
74 |
State Route 74 |
Definition Source: CT DEP, CT DOT | |
169 |
State Route 169 |
Definition Source: CT DEP, CT DOT | |
187 |
State Route 187 |
Definition Source: CT DEP, CT DOT | |
287 |
State Route 287 |
Definition Source: CT DEP, CT DOT |
State of Connecticut, Department of Environmental Protection
Class for ROUTE4. This field value modifies and describes the type of route specified in the ROUTE4 field.
Value | Definition |
---|---|
State Route |
For route segments that are State Routes such as State Route 138. |
Definition Source: CT DEP, CT DOT | |
US Route |
For route segments that are US Routes such as US Route 6. |
Definition Source: CT DEP, CT DOT |
State of Connecticut, Department of Environmental Protection
Route for CLASS4. This field value indicates the route number for the type of route specified in the CLASS4 field.
Value | Definition |
---|---|
6 |
US Route 6 |
Definition Source: CT DEP, CT DOT | |
138 |
State Route 138 |
Definition Source: CT DEP, CT DOT | |
189 |
State Route 189 |
Definition Source: CT DEP, CT DOT |
State of Connecticut, Department of Environmental Protection
Class for ROUTE5. This field value modifies and describes the type of route specified in the ROUTE5 field.
Value | Definition |
---|---|
US Route |
For route segments that are US Routes such as US Route 44. |
Definition Source: CT DEP, CT DOT |
State of Connecticut, Department of Environmental Protection
Route for CLASS5. This field value indicates the route number for the type of route specified in the CLASS5 field.
Value | Definition |
---|---|
44 |
US Route 44 |
Definition Source: CT DEP, CT DOT |
State of Connecticut, Department of Environmental Protection
Internal feature number.
ESRI
Line features conform to the following topological rules. Lines are single part. There are no duplicate lines. Lines do not self overlap. Lines do not overlap other lines. Lines intersect only at nodes, and all nodes anchor the ends of lines. Lines do not overshoot or undershoot other lines they are supposed to meet and intersect. The tests of logical consistency were performed by the State of Connecticut using ESRI ArcInfo software to maintain feature topology in ArcInfo coverage format. The data is topologically clean. The ArcInfo Clean function was repeatedly used following edits to verify topology and enforce a minimum distance between vertices of 4 feet (fuzzy tolerance) and a minimum allowed overshoot length of 10 feet (dangle length). Due to the topology verification process, there may be minor differences in feature geometry between certain features in this layer and the original data source from the University of Connecticut, Center for Center for Geographic Information and Analysis.
The completeness of the data reflects the content of Connecticut State Tourism Map 2002-2003 published by the Connecticut Department of Transportation. This layer includes all highways and routes depicted on the Connecticut State Tourism map, with feature geometry based on information from the U.S Bureau of Census that was published for Connecticut by the University of Connecticut, Center for Geographic Information and Analysis. This data does not include local roads, interstate highway entrance ramps, exit ramps, exit numbers, rest areas. This data is not updated.
The Connecticut Route Segments layer does not retain the full breadth of feature types in the source layers originally compiled and published by the U.S. Bureau of Census or the University of Connecticut, Center for Geographic Information and Analysis. Rather, the Connecticut Route Segments layer is simpler and comprised of a subset of four basic feature types: Interstate Highways, U.S. Routes, State Routes, and connectors. Each line feature is capable of describing one or more route due to the presence of five pairs of CLASS and ROUTE fields that can record combinations of (merged) routes for the same route segment. This multi-field approach guarantees similar geomtery (shape) along multi-route segments without resorting to duplicating features. The names of these paired fields are CLASS1 and ROUTE1, CLASS2 and ROUTE2, CLASS3 and ROUTE3, CLASS4 and ROUTE4, CLASS5 and ROUTE5. Note, each route is always recorded in the same set of paired fields. For example, US Route 44 is always attributed in the (fifth) CLASS5 and ROUTE5 field pair, where CLASS5="US Route" and ROUTE5="44" Additionally, line features where US Route 44 and US Route 6 merge are attributed with CLASS4="US Route", ROUTE4="6", CLASS5="US Route" and ROUTE5="44". Line features where these two routes merge with Interstate 84 are additionally attributed with CLASS1="Interstate" and ROUTE1="84", and so on. There is no real logic for determining which set of paired fields is used to record a particular route other than an attempt to minimize the number of paired fields necessary to accomodate all possible combinations of multi-route segments. Values are within defined domains. The accuracy test for the CLASS(1-5) and ROUTE(1-5) attribute values was conducted by comparing the routes as they are published on the Connecticut State Tourism Map 2002-2003 with interactive displays of the routes segments on a computer graphic system. Each route was individually tested by visually inspecting and comparing its geometry in relation to road features in the Connecticut Street Network State Plane, TIGER/Line 2000 layer, which was compiled and published by the University of Connecticut, Center for Geographic Information and Analysis. Each route was individually highlighted in color and tested one at a time. Several tests were made to compare, edit and verify CLASS and ROUTE attribute values. Attribute values for the LEGEND field reflect the highest of the CLASS(1-5) values where Interstate is highest and connector is lowest. CONNECTOR records the name of the connector. All values are manually entered, but later programmatically validated for spelling consistency, etc.
The horizonal positional accuracy of this data is no better than United States National Map Accuracy Standards for 1:100,000-scale maps . According to this standard, not more than 10 percent of the points tested are to be in error by more than 1/50 inch (167 feet) measured on the publication scale of a USGS 1:100,000-scale topographic map. The following description of horizontal accuracy is taken from the metadata for the data source upon which the Connecticut Route Segments layer is based, which is the Connecticut Street Network State Plane, TIGER/Line 2000 layer. It cautions against using these data for measurement and detailed, large scale mapping purposes.The information presented in these files is provided for the purposes of statistical analysis and census operations only. Coordinates in the TIGER/Line files have six implied decimal places, but the positional accuracy of these coordinates is not as great as the six decimal places suggest. The positional accuracy varies with the source materials used, but generally the information is no better than the established national map Accuracy standards for 1:100,000-scale maps from the U.S. Geological Survey (USGS); thus it is NOT suitable for high-precision measurement applications such as engineering problems, property transfers, or other uses that might require highly accurate measurements of the earth's surface. The USGS 1:100,000-scale maps met national map accuracy standards and use coordinates defined by the North American Datum, 1983. For the contiguous 48 States, the cartographic fidelity of most of the Census 2000 TIGER/Line files, in areas outside the 1980 census Geographic Base File/Dual Independent map Encoding (GBF/DIME) file coverage and selected other large metropolitan areas, compare favorably with the USGS 1:100,000-scale maps. The Census Bureau cannot specify the accuracy of features inside of what was the 1980 GBF/DIME-File coverage or selected metropolitan areas. The Census Bureau added updates to the TIGER/Line files that enumerators annotated on maps sheets prepared from the Census TIGER data base as they attempted to traverse every street feature shown on the Census 2000 map sheets; the Census Bureau also made other corrections from updated map sheets supplied by local participants for Census Bureau programs. The locational accuracy of these updates is of unknown quality. In addition to the Federal, State, and local sources, portions of the files may contain information obtained in part from maps and other materials prepared by private companies. Despite the fact the TIGER/Line data positional accuracy is not as high as the coordinate values imply, the six-decimal place precision is useful when producing maps. The precision allows features that are next to each other on the ground to be placed in the correct position, on the map, relative to each other, without overlap.
Line features from the Connecticut Street Network State Plane, TIGER/Line 2000 layer with LEGEND attribute values equal to "Major Highway" or "Highway". The Connecticut Street Network State Plane, TIGER/Line 2000 database is a statewide database of address-ranged street segments compiled from the Census 2000 TIGER/Line files. In order for others to use the information in the Census TIGER data base in a geographic information system (GIS) or for other geographic applications, the Census Bureau releases to the public extracts of the data base in the form of TIGER/Line files. The University of Connecticut Center for Geographic Information and Analysis prepares databases such as The Connecticut Street Network State Plane, TIGER/Line 2000 database from the public extracts released by the Census Bureau as a service to the University community and the state. TIGER, TIGER/Line, and Census TIGER are registered trademarks of the U.S. Census Bureau.
ground condition
Line features representing the geometry (shape) for all route segments.
ground condition
Line features representing the geometry (shape) for all route segments with attributes that describe route class and route number information. Routesegments.shp is in Shapefile format.
ground condition
Route Segment Geometry Creation - The process of creating the Connecticut Route Segments layer first involved developing a statewide layer with line features for all routes that conformed to the following topological rules. Lines are single part. There are no duplicate lines. Lines do not self overlap. Lines do not overlap other lines. Lines intersect only at nodes, and all nodes anchor the ends of lines. Lines do not overshoot or undershoot other lines they are supposed to meet and intersect. Lines may end without intersecting another line (deliberate dangle acceptable). Intersections must be with three or more lines (no pseudo nodes). These topological rules were applied to 1:100,000-scale based line features and ensure routes would properly connect (no gaps) and intersect each other. To begin creating the desired feature geometry, line features that defined routes in the Connecticut Street Network State Plane, TIGER/Line 2000 layer were extracted and separately saved to a new layer in Shapefile format. Features that were extracted from the Connecticut Street Network State Plane, TIGER/Line 2000 layer were based on LEGEND attribute values equal to "Major Highway" or "Highway". The resulting Shapefile included 199,636 features and depicted the geometry of most Interstates, US Routes, State Routes, and connectors. There were nearly 200,000 features in the resulting Shapefile because, for the most part, each feature represented a small section of a route that intersects with other local roads so many routes were comprised of hundreds of short features connecting to each other. After comparing the resulting Shapefile to the Connecticut State Tourism Map published by the Connecticut Department of Transportation, additional edits to the resulting Shapefile were necessary because there were small gaps along some routes (missing features) and the Shapefile included some roads that were not designated as routes on the Connecticut State Tourism Map. Since the overall process of creating the Routes Segments layer was to first establish the correct geometry and later attribute line features with route class and number information, all attributes (fields) were deleted from the Shapefile. The physical remove of attributes did not represent a loss of detailed information that could not be created later because the route number information was not consistently assigned to individual features in the Connecticut Street Network State Plane, TIGER/Line 2000 layer. Next, each route was carefully followed on the Connecticut State Tourism Map and visually compared to its geometry in the Shapefile. Any gaps along each route in the Shapefile were replaced with line segments manually copied and pasted from the Connecticut Street Network State Plane, TIGER/Line 2000 layer. One by one, each route was inspected to ensure that a continuous route could be created from a series of short line features that properly connected to and intersect with all other routes in the Shapefile. Where routes merged, only one set of line features was established (no duplicate features allowed). All line features from the initial extraction that did not appear as routes on the Connecticut State Tourism Map were deleted from the Shapefile. Once the geometry for 8 Interstates, 7 US Routes, 209 State Routes, and 10 connectors was systematically inspected, the Shapefile was converted to ArcInfo coverage format in order to more strictly enforce line topology rules. For example in ArcInfo format, line features were unsplit (merged) so that they only begin and end at intersections with other routes. This rule reduced the number of line features from approximately 200,000 to 2,000 and preserved the orginal geometry that define individual routes. Smaller road sections from the original Connecticut Street Network State Plane, TIGER/Line 2000 layer were merged by this rule to form longer features with the combined geometry. The ends of approximately 20 line features were manually moved no more than about 50 feet in order to close gaps along individual routes or at intersections. The ArcInfo Clean function was repeatedly used following edits to verify topology and enforce a minimum distance between vertices of 4 feet (fuzzy tolerance) and a minimum allowed overshoot length of 10 feet (dangle length). Due to the topology verification process, there may be minor differences in feature geometry between certain features in this layer and the original data source from the University of Connecticut, Center for Center for Geographic Information and Analysis. Finally, the layer was converted from ArcInfo coverage to Shapefile format once it was determined that it captured all necessary geometry and conformed to the topology rules.
79 Elm Street
Line features from the Connecticut Street Network State Plane, TIGER/Line 2000 layer with LEGEND attribute values equal to "Major Highway" or "Highway". The Connecticut Street Network State Plane, TIGER/Line 2000 database is a statewide database of address-ranged street segments compiled from the Census 2000 TIGER/Line files. In order for others to use the information in the Census TIGER data base in a geographic information system (GIS) or for other geographic applications, the Census Bureau releases to the public extracts of the data base in the form of TIGER/Line files. The University of Connecticut Center for Geographic Information and Analysis prepares databases such as The Connecticut Street Network State Plane, TIGER/Line 2000 database from the public extracts released by the Census Bureau as a service to the University community and the state. TIGER, TIGER/Line, and Census TIGER are registered trademarks of the U.S. Census Bureau.
ground condition
Line features representing the geometry (shape) for all route segments.
ground condition
Assign CLASS and ROUTE attribute values - Five pairs of CLASS and ROUTE fields were added to the Shapefile in order to take into consideration situations where routes merge onto a single line feature. This multi-field approach guarantees similar geometry (shape) along multi-route segments without resorting to duplicating features. The names of these paired fields are CLASS1 and ROUTE1, CLASS2 and ROUTE2, CLASS3 and ROUTE3, CLASS4 and ROUTE4, CLASS5 and ROUTE5. The domain for the CLASS field consists of "Interstate", "US Route", "State Route", and "Connector". The associated ROUTE field stores the corresponding route number as a string. Note, each route is always recorded in the same set of paired fields. For example, US Route 44 is always attributed in the (fifth) CLASS5 and ROUTE5 field pair, where CLASS5="US Route" and ROUTE5="44" Additionally, line features where US Route 44 and US Route 6 merge are attributed with CLASS4="US Route", ROUTE4="6", CLASS5="US Route" and ROUTE5="44". Line features where these two routes merge with Interstate 84 are additionally attributed with CLASS1="Interstate" and ROUTE1="84", and so on. Beginning with Interstates, each route was carefully followed on the Connecticut State Tourism Map so that the corresponding line features in the Shapefile could be manually selected and assigned CLASS and ROUTE attribute values using ArcView 3.3 software. All values were manually entered, but later programmatically validated for logical and spelling consistency, etc. Once the CLASS and ROUTE attribute values were correctly attributed, the LEGEND field was added to easily classify (multiple route type) features and cartographically represent them on a map. Values were attributed programatically and assigned a value of "Interstate", "US Route", "State Route" or "Connector" by comparing and taking the most dominant (route type) of the CLASS1, CLASS2, CLASS3, CLASS4 and CLASS5 attribute values. For example, if a route segment was both part of an Interstate and US Route, then the value of the LEGEND attribute was set to be "Interstate" so as to cartographically represent the line feature as an Interstate.
79 Elm Street
Line features representing the geometry (shape) for all route segments.
ground condition
Line features representing the geometry (shape) for all route segments with attributes that describe route class and route number information. Routesegments.shp is in Shapefile format.
ground condition
Connecticut Route Segments
Although this data set has been used by the State of Connecticut, Department of Environmental Protection, no warranty, expressed or implied, is made by the State of Connecticut, Department of Environmental Protection as to the accuracy of the data and or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the State of Connecticut, Department of Environmental Protection in the use of these data or related materials. The user assumes the entire risk related to the use of these data. Once the data is distributed to the user, modifications made to the data by the user should be noted in the metadata.
Geographic information sytem (GIS), computer-aided drawing or other mapping software is necessary to display, view and access the information.
79 Elm Street
The data distributor does not provide custom GIS analysis or mapping services. Data is available in a standard format and may be converted to other formats, projections, coordinate systems, or selected for specific geographic regions by the party receiving the data.
79 Elm Street