Simplified 4-Step Transportation Planning Process For Any Sized Area
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1999-01-01
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TRIS Online Accession Number:00778502
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NTL Classification:NTL-RAIL TRANSPORTATION-Rail Planning and Policy;NTL-PUBLIC TRANSPORTATION-Transit Planning and Policy;NTL-PLANNING AND POLICY-PLANNING AND POLICY;NTL-PLANNING AND POLICY-Travel Demand;NTL-OPERATIONS AND TRAFFIC CONTROLS-Congestion;
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Abstract:This paper presents a streamlined version of the Washington, D.C. region's
4-step travel demand forecasting model. The purpose for streamlining the
model was to have a model that could: replicate the regional model, and be run
in a new software, TP/4in1, that executes the entire 4-step process in
one execution on a PC.
The streamlined model is similar to, but more simplified than, the regional MPO
model, with one major difference. The trip generation and mode split steps
result in a trip generation rate of 10.0 vehicle trips per detached household
for the suburban/rural trip rate. This is more in line with that of smaller
communities and yet much higher than the traditional MPO trip rate for larger
areas.
The model is now being used for travel forecasting for rural small communities,
such as Fauquier County, Virginia, (55,000 population in 1995) on the urban
fringe. This model can be adjusted to local area surveys or used "as is" for
any sized area, large or small. Using this model makes executing the
traditional 4-step modeling process quite easy, even for the novice model
practitioner. This article also describes, very briefly, the new software
developed to execute this model and is available for free to any public agency.
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