Connecticut Road

Connecticut Roads and Trails is 1:24,000-scale base map data. It depicts the location of all roads and trails published on the USGS topographic quadrangle maps. For base map purposes, use this layer with other 1:24,000-scale base map data such as Hydrography, Railroads, Airports, and Towns. The Roads and Trails layer includes information within Connecticut and is derived from the Roads and Trails Master layer, which includes all road and trail features depicted on all of the U.S. Geological Survey (USGS) 7.5 minute topographic quadrangle maps that cover the State of Connecticut. This layer may be used as a possible data source for other 1:24,000-scale layers having features that should coincide with the roads and trails on the USGS topographic quadrangle maps. Not intended for maps printed at map scales greater or more detailed than 1:24,000 scale (1 inch = 2,000 feet.)

Connecticut Roads and Trails is a 1:24,000-scale, feature-based layer that includes road and trail features on the U.S. Geological Survey (USGS) 7.5 minute topographic quadrangle maps for the State of Connecticut. This layer only includes features located in Connecticut. The layer is based on information from USGS topographic quadrangle maps published between 1969 and 1984 and does not represent the road network in Connecticut at any one particular point in time. The layer does not depict current conditions and excludes many roads that have been built, modified, or removed since the time these topographic quadrangle maps were published. The layer includes Interstate highways, US routes, state routes, local roads, unpaved roads, traffic circles, bridges, cul-de-sacs, trails, etc. It does not include route number, street name, house address, traffic direction, or traffic volume information for these features. Nor does it represent a complete or current network of hiking trails. Features are linear and represent road centerlines. Attribute information is comprised of codes to cartographically represent (symbolize) road and trail features on a map. This layer was originally published in 1994. The 2005 edition includes the same road features published in 1994, but the attribute information has been slightly modified and made easier to use.

康涅狄格州道路与步道（Connecticut Roads and Trails）为1:24000比例尺的底图数据，呈现了美国地质调查局（U.S. Geological Survey，USGS）7.5分地形分幅图（7.5 minute topographic quadrangle maps）上刊载的全部道路与步道的位置。作为底图使用时，需将该图层与其他1:24000比例尺底图数据（如水文要素（Hydrography）、铁路（Railroads）、机场（Airports）、城镇图层（Towns））配合使用。本道路与步道图层仅涵盖康涅狄格州范围内的信息，其源自道路与步道主图层（Roads and Trails Master layer），该主图层包含覆盖康涅狄格州的全部美国地质调查局（USGS）7.5分地形分幅图上所描绘的所有道路与步道要素。该图层可作为其他1:24000比例尺图层的潜在数据源，此类图层的要素需与USGS地形分幅图上的道路与步道保持一致。本图层不适用于比例尺大于或精度高于1:24000（即1英寸=2000英尺）的印刷地图。

康涅狄格州道路与步道为基于要素的1:24000比例尺图层，涵盖覆盖康涅狄格州的美国地质调查局（USGS）7.5分地形分幅图（7.5 minute topographic quadrangle maps）上的道路与步道要素。该图层仅包含康涅狄格州境内的要素，基于1969年至1984年间刊载的USGS地形分幅图信息，无法代表康涅狄格州任一特定时间点的道路路网状况。该图层未呈现当前实际路况，且未纳入自上述地形分幅图出版以来新建、改建或拆除的大量道路。图层包含州际公路（Interstate highways）、美国国道（US routes）、州道（state routes）、地方道路（local roads）、未铺装道路（unpaved roads）、环岛（traffic circles）、桥梁（bridges）、死胡同路（cul-de-sacs）、步道（trails）等要素，但未包含这些要素的路线编号、街道名称、门牌号、行车方向或交通流量信息。同时，该图层也未完整呈现当前的徒步步道路网。所有要素均为线性，代表道路中心线。属性信息由用于在地图上以制图方式表达（符号化）道路与步道要素的编码组成。该图层最初于1994年发布，2005版保留了1994版的全部道路要素，但对属性信息进行了小幅优化，提升了易用性。