Understanding Trip Generation in Traffic Analysis Zones
Trip generation is the process of determining the number of trips starting or ending in each traffic analysis zone within a study area. Trips are categorized into home-based work trips, home-based other trips, non-home-based trips, internal-external trips, and through trips. External areas are subdivided into larger traffic zones representing trips using the study area's transportation system but starting or ending outside the study area.
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Presentation Transcript
Trip generation is the process of determining the number of trips that will begin or end in each traffic analysis zone within a study area. Since the trips are determined without regard to destination, they are referred to as trip ends. Each trip has two ends, and is produced by a traffic zone and attracted to another traffic zone.
The trip purpose breakdown in most widespread use is as follows, 1. Home-based work trips between a person's home and place of employment for the purpose of working. 2. Home-based other trips between a person's home and any other destination for any other purpose. 3. Non-home-based trips that have neither end at home, regardless of purpose. These may include truck and taxi trips.
Internal-external trips trips with one end inside the study area and one outside the study area. 5. Through trips trips that have neither end in the study area, but pass through it.
The external area is usually subdivided into larger traffic zones. External zones represent trips that use the study area s transportation system, but start or end out- side of the study area itself. External zones are also represented by zone centroids sometimes called stations.
