Description

The capital costs of roads involve the costs associated with both residential and nonresidential roads. This module uses residential trip rates, percent new residential trips, trip ends adjustment, and residential trip lengths for each jurisdiction. Furthermore, the model uses a compactness switch to assign lower road costs for more compact development patterns due to reduced vehicle miles traveled (VMT). At present this is shown for representative purpose only. In the future this would be quantified based on secondary research.  Annual residential VMT is then derived using the above mentioned variables for each jurisdiction using the annual dwelling unit (DU) change.

Assumptions Used

• Annual Dwelling Unit Change
  

• Trip Ends Adjustment = 0.5

• Residential Trip Rates

• Percent New Residential Trips

• Residential Trip Lengths

Equations and Variables Used

• Annual Residential Vehicle Miles Traveled = Annual DU Change x Residential Trip Rates x Percent New Residential Trips x Trip Ends Adjustment x Residential Trip Lengths x Development Pattern