SPRTA 2020 Model & Fee Update

SPRTA (PCTPA) staff, representatives from each member agency, and a consultant team kicked-off a 2-year process to overhaul the SPRTA travel demand model (TDM) as well as the Tier I and II Regional Impact Fee programs. The model, like other software programs needs periodic updates. State law also requires impact fee programs to be updated every 5-years. The SPRTA regional impact fees are a critical component in the multi-faceted approach to funding future transportation improvements in South Placer County.

Model Update

Model Update

Although PCTPA needs a new model for its own use, the intention is for the model to be useful for a variety of users, including member agencies, developers, and consultants. In addition to the model being used to update the regional fee programs, the model will be comply with new SB-743 requirements to track trip lengths within and outside of Placer county. This should be especially useful for traffic impact studies that need to identify where network improvements are needed and fulfill the SB-743 requirements.

Regional Fee Update

In addition to the TDM’s usefulness for transportation planning, a TDM is essential when it comes to funding and budgeting for transportation projects. Accurate forecasting gives Placer County an edge when competing for state and federal funding. In addition, California state law requires TDMs to demonstrate the basis for charging transportation impact fees on land development, to make sure that developers pay their fair share to improve the roads, transit, and public facilities that they will be impacting. The TDM will help to estimate who is responsible for costs associated with the needed improvements, what local land developers can be charged via impact fee, and what percentage of funding still needs to be acquired by other means, such as grant funding or a local transportation sales tax.

Fee Calculation Process


During the two-year update process, PCTPA staff will engage local elected officials, public works and planning staff, the building community, residents, and other interested stakeholders on traffic congestion impacts and how transportation projects are funded. A robust engagement process will be implemented to share project updates on how traffic congestion impacts daily commerce and personal travel choices, how future traffic congestion is forecast, and how impact fees are set. A series of virtual workshops, an informational video, and regular electronic communication via email and social media will keep stakeholders informed.

Mini-Workshops #1

In-case you missed the first of four mini-workshops at the January 27,2021 SPRTA Board meeting, you can watch the presentation that begins at the 6:15 mark here.

Project Updates


The TDM and Fee update will span nearly two years. The TDM development will occur during the first half of the update process followed by the Regional Fee updates. The full schedule is depicted below.

Project Schedule