Georgia State Road and Tollway Authority (SRTA) Managed Lanes and Airport Transit Planning Services

CLIENT: Georgia State Road and Tollway Authority (SRTA)

Purpose of Project

As a subconsultant, MMP assisted with determining the impacts of managed lanes on SRTA’s Xpress commuter bus service, as well as the feasibility of extending Xpress commuter bus service south to the world’s busiest airport, Hartsfield Jackson Atlanta International Airport (HJAIA).  As part of Task 1 (Transit and Managed Lane Impacts and Recommendations), MMP reviewed the impacts of SRTA’s existing Xpress service and forecasted travel time changes for existing routes once transit service utilizes the managed lane facilities. Travel time savings were estimated at a route level using the existing transit service travel time and forecasted managed lane speed/travel time provided by SRTA. MMP also assisted with identification of opportunities for expansion.  Specifically, MMP extracted transit ridership data and origin-destination patterns for the Xpress Service based on the trip tables from the Atlanta Regional Commission’s (ARC) activity-based model (ABM) and assisted in developing/deriving applicable metrics from the data. MMP also assisted in the review of opportunities with respect to planned access as the existing and planned Xpress routes that will be impacted. We also revised the opportunities, through a review of draft design recommendations for each of the seven managed lanes corridors. As part of Task 2 (Xpress Airport Bus Planning), MMP extracted information from the ARC’s ABM to get a better understanding of overall travel demand for airport travelers, as well as daily commuters who travel to the airport for work for the horizon year of 2040. Based on overall travel demand and the propensity of using transit, MMP estimated ridership potential.

Our Role on the Project

MMP lead all travel demand modeling efforts in support of the identification and evaluation of commuter bus expansion opportunities.