40.620.010    Traffic Impact Fee Formula

The impact fee component for roads shall be calculated using the following formula:

TIF = (size of development by unit of measure/unit of measure) x (daily trips per unit of measure) x (pass-by factor) x (BEF) x (0.85) x (fee per daily trip by district)

A.    “Unit of measure” means the associated trip generation rates and other factors by land use type that have been provided in the Traffic Impact Fee Technical Document and supplemented by the current Institute of Transportation Engineers Trip Generation Manual along with the Institute of Transportation Engineers Trip Generation Handbook. The rates shown in the Traffic Impact Fee Technical Document are most commonly used and are based on the Institute of Transportation Engineers Trip Generation Manual and Trip Generation Handbook.

B.    “Pass-by factor” means trips that are made as intermediate stops on the way from an origin to a primary trip destination without a route diversion. The pass-by factor can be obtained in the Institute of Transportation Engineers Trip Generation Manual.

C.    “BEF” means business enhancement factor; a multiplier of 0.70 used to reduce TIF payment for retail and service-related businesses only. Retail and service related businesses have shorter average trip lengths, reducing impacts on the existing transportation infrastructure.

D.    Adjustment of 0.85 is applied for the portion of anticipated additional tax revenues resulting from a development which is pro-ratable to system improvements contained in the capital facilities plan.

(Amended: Ord. 2016-06-12; Ord. 2023-01-08)