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DriveTime Software
Freeway is a drive time generator which can be used to produce polygons representing the area which can be driven from a specified point within a specified amount of time under specific traffic conditions either one at a time or for an entire dBase table. It can also be used for point-to-point drive times between a single origin an single destination point. Finally, it can produce tables between a set of one or more origins and a set of one or more destinations.
Freeway uses a precompiled grid environment that is a compressed representation
of the Tiger street file system. A detailed grid (approximately 500 feet
in size) is used for drive time up to 30 minutes while a generalized grid
(approximately 1/2 mile in size) is used for larger drive times. It is possible
to force Freeway to use a specific grid size for any particular problem.
Like Freeway DriveTime for US, Freeway DriveTime for Canada is a drive time generator which can be used to produce a wide assortment of maps and data. Freeway can create polygons for an entire dBase table, or representing the area which can be driven from a specified point within a specified amount of time under specific traffic conditions either one at a time. It can also be used for point-to-point drive times between a single origin an single destination point in Canada. Finally, it can produce tables between a set of one or more origins and a set of one or more destinations.
MapInfo DriveTime Module US is a premier software module for creating drive-time polygons around any location. DriveTime provides a supplement to stand-alone mapping systems, integrated marketing systems, or vertical market applications in which distance is more appropriately expressed in terms of travel time. This method is preferred in many cases to standard straight-line, radius, and network distance calculations.
DriveTime creates a polygon for the area that can be covered over the road network in a specified period of time, given certain traffic conditions. The polygon can then be used within a mapping environment or within a spatial retrieval engine to extract demographics, facility locations, traffic counts and other geographic data.
DriveTime's system uses a highly schematic and compressed street network file. Road linkages have been classified into four categories, according to type and location of the road. Maximum speeds can be set independently for each type of road.
