MTA rolls out headway-management pilot on Murfreesboro Pike using tablets, smart signals and analytics
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Summary
As part of an FTA-funded pilot, MTA deployed tablets on articulated buses and new headway-management tools — including transit signal priority and an Intelligent Decision Support System with Vanderbilt — to even bus spacing and reduce bunching on the busy Murfreesboro Pike corridor.
The Nashville MTA board received an update on a Murfreesboro Pike headway-management pilot designed to reduce bus bunching and improve service reliability on the corridor.
Project staff said the initiative is supported in part by a discretionary FTA grant and targets a corridor that carries about 5,000 riders on a typical weekday. Rather than prioritizing strict on-time performance, the pilot aims to maintain even vehicle spacing (headways) so customers see buses at predictable intervals rather than long gaps followed by multiples of buses arriving together.
Tools deployed include operator-facing tablets (installed on 60-foot New Flyer articulated buses operating the corridor) that show headway status and simple color cues, route-ladder visualizations for supervisors, and transit-signal-priority infrastructure. Later project phases will add an Intelligent Decision Support System (IDSS) in partnership with Vanderbilt University and live passenger-counting at key stops, enabling supervisors to make data-driven decisions and potentially automate some minor interventions. The initial pilot launched Jan. 5 after operator training and equipment installation.
Board members asked how passenger communication would work during brief holds; staff said holds would be used selectively (only at certain locations and typically limited to buses with fewer than 15–20 passengers, no more than 3–4 minutes) and that the expected tradeoff would reduce overall passenger wait variability. Staff also described partnerships with Penn State and Vanderbilt for analytics access and emphasized that the approach is most appropriate for high-frequency trunk routes where headway management yields the largest benefits.
The pilot will be assessed and optimized through a review and final report to the FTA at project closeout, with some elements continuing as operations evolve.
