01663939

Component

Transportation impact analyses (TIA) typically use vehicle trip generation rates published by the Institute of Transportation Engineers (ITE) or other locally accepted rates. These originate from suburban sites in single land use areas where almost all trips are made by motor vehicle. These rates have been found to not properly reflect trip generation for smart growth developments.This paper describes trip generation research completed for California apartment and office smart growth developments that conclusively demonstrates that significant portions of trips to and from the developments are made by modes other than motor vehicles. On average, compared to ITE suburban rates the surveyed sites generated 44 percent fewer peak hour vehicle trips for apartments and 49 percent less for office buildings. Regression equations using two independent variables – development units and nearby intersection density – provide good, direct estimates of AM and PM peak hour vehicle trip generation for such developments. However, to qualify as a smart growth development for trip generation purposes, a specific set of criteria should be met.

This paper was sponsored by TRB committee ADD30 Standing Committee on Transportation and Land Development. Alternate title: Embracing Change: Estimating Site Trip Generation for Smart Growth Development

18-04900

English

23p

2018

Transportation Research Board 97th Annual Meeting

Digital/other

Figures; References; Tables

Apartment buildings; Automobile driving; Mode choice; Office buildings; Peak periods; Regression analysis; Smart growth; Traffic data; Travel behavior; Trip generation

Institute of Transportation Engineers; Trip Generation Handbook. Third Edition (2014)

Traffic impact analysis

California

Highways; Planning and Forecasting; Vehicles and Equipment

Transportation Research Board Annual Meeting 2018 Paper #18-04900

TRIS, TRB, ATRI

Jan 8 2018 11:13AM