In the case of a using a sidewalk network, jaywalking and intersections without crosswalks cannot be represented. Also, non-compliant ADA sidewalks cannot be modeled in this method and without sidewalk ramps the walkable catchment would not be truly accessible to all pedestrians. The use of GIS for presenting Background Data in Corridor Planning is very useful and provides an easy way to present visual cues. Using basic functions in ArcView maps and locations can be easily created and presented in reports and meetings during the corridor planning process. These maps will allow planners and engineers to convey the objectives of the plan more easily.
Walkable Catchments are easy to determine using the Network Analyst Extension.
They also provide an excellent and potentially reliable method for determining accessibility. This method can help determine areas of the street network that need to be concentrated on to help improve pedestrian accessibility of the study corridor. Overall, GIS is an excellent and easy way to provide background data to aid in corridor planning due to its non-complicated functions and excellent visual potential. Transportation Tech Sheet. The Geographic Information System for Everyone.