Chapter 53

Transportation Applications of GIS

Figure 53-26, 12 and 24-hour isochrones of commercial vehicle

operations out of New York City on the North American Highway System

Figure 53-7Three-dimensional maps of accessibility on foot

Figure 53-7 Three-dimensional maps of accessibility on shuttle bus

Figure 53-8 Three-dimensional mesh map of accessibility to

academic buildings

Process of Accessibility AnalysisConcept Formation•Define the purpose of eth analysis and its context•Select an accessibility measure•Specify the accessibility measure

•Type of spatial unit•Origins and destinations•Attractiveness•Travel mode•Travel impedance•Parameters of the measure

•Identify data requirements

Data Preparation•Data Collection•Input data pre-processing

Computing an Accessibility Measure•Calculate travel impedance•Identify destination sets for each reference location•Calculate the accessibility measure

Interpretation and Evaluation•Present the accessibility measurement results•Interpret and evaluate the results

Figure 52-7Tick locations from perceptual sightings map

Figure 6-3Raster and Vector repersentations of spatial objects

Figure 49-14Screenshots of A9 block view from Amazon.com

showing street-level photos of Hollywood Boulevard

Figure 46-1Visualization of acquired 3D spatial data and features

Figure 6-4Spatial complex consisting of topologically related

spatial objects

Web Links

• http://vid01.esri.com/winmmedia/alr3/alr-intro.wmv– For managing traffic and trip planning

• http://vid01.esri.com/winmmedia/alr3/cloud1.wmv– For managing a Fleet