Using GIS for Transportation Analysis
With its extensive spatial analysis capabilities and rich visual environment, Geographic Information Systems (GIS) can give transportation planners fast and effective tools for analyzing travel patterns and travel network characteristics. Provided, of course, that data bases describing those characteristics can be easily converted to GIS form.
M2probe is a planning technologies application that “hotlinks” the EMME/2 travel demand
forecasting package data base to ArcView? desktop GIS. Planners can see all of the networks and
trip tables inside the EMME/2? data base from inside ArcView?, and can instantly convert them to ArcView shapefiles. M2probe can instantly generate a wide variety of maps of interest to planners, including color-shaded maps, dot-density maps, desire line diagrams, and line volume maps. At the click of a mouse button, planners can aggregate data from traffic analysis zones (TAZs) to any sub-area or district system of their own choosing. Planners can instantly generate a wide variety of network statistics, including volume/capacity ratios, level-of-service, vehicle hours of travel, vehicle miles of travel, and vehicle hours of delay. These network measures can be instantly summarized by TAZ or sub-area.
M2probe offers transportation planners an unprecedented ability to perform regional and corridor analysis based on EMME/2 simulations of travel demand.
Travel to the Albuquerque downtown as simulated by EMME/2? is shown in this graphic. M2probe
extracted the data from the EMME/2? data bank and generated this map in less than 5 seconds.
M2probe: Hotlinking ArcView and EMME/2