State Road & Tollway Authority
Georgia Regional Transportation Authority (GRTA)

Managed Lanes and Airport Transit Planning Services

State Road & Tollway Authority Map
Modern Mobility Partners calculated potential market opportunities for expansion of GRTA Xpress commuter bus service to Hartsfield Jackson-Atlanta International Airport.

As a subconsultant, MMP is assisting 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 is reviewing the impacts of SRTA’s existing Xpress service and forecasting travel time changes for existing routes once transit service utilizes the managed lane facilities. Travel time savings are being estimated at a route level using the existing transit service travel time and forecasted managed lane speed/travel time provided by SRTA. MMP is also assisting with identification of opportunities for expansion.  Specifically, MMP is extracting 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 is assisting in developing/deriving applicable metrics from the data. MMP is also assisting in the review of opportunities with respect to planned access as the existing and planned Xpress routes will be impacted. MMP will also advise 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 is extracting 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 will estimate ridership potential.

Client: Georgia State Road and Tollway Authority (SRTA)
MMP Role: Subconsultant
Period of Performance: September 2018 – June 2019