SH 288 Managed Lanes

Jacobs was appointed to analyze the traffic and revenue performance of the SH 288 Express Toll Lane Project of Harris County in Houston. 

The project provides traffic and revenue forecasts for the managed lanes system in the south of Houston. The study involved the development of a sub-area model of the corridor from the H-GAC CUBE model. The sub-area model was enhanced using a ‘logit-at-assignment’ choice model, and travel patterns were augmented using Streetlight Insight Origin-Destination data.  The model was calibrated to transaction data for the Express Lanes and MVDS data for the General Purpose Lanes, as well as speed data. Bespoke growth models pivoted from the Streetlight data using the growth distribution from the H-GAC model, which was controlled to Jacobs econometric forecasting models for the corridor. The model was used to test a variety of toll strategies, quantification of impacts of construction work on I-610 and quantification of the impacts of the bridge failure at Sims Bayou. The primary purpose of the study was to produce long-term traffic and revenue forecasts to inform investment decisions.