This page, Route 28 Road Diet Pilot Evaluation, is part of
This page, Route 28 Road Diet Pilot Evaluation, is offered by

Route 28 Road Diet Pilot Evaluation

Analyzing the impacts of the road diet on safety and speeding by comparing vehicle speeds before and after the road diet was put in place.

Table of Contents

Travel Speed Data Analysis

Speeding is a factor in an estimated one-third of all fatal crashes, according to the National Highway Traffic Safety Administration. When crashes include vehicles traveling at high speeds, they are more likely to result in serious injuries and property damage. Our aim is to increase safety for people traveling on Main Street and calm vehicle traffic with this project.

To evaluate whether the project meets our safety goals, we will analyze traffic data to study the impact of the road diet pilot on vehicle speeds along the roadway. We will analyze the impacts of the road diet on safety and speeding by comparing vehicle speeds before and after the road diet was put in place. At various locations on Main Street, we will evaluate the impact of the road diet pilot on:

  • Average travel speeds
  • Maximum travel speeds

Field Observations

The project team will conduct field observations along the project area to observe traffic volumes and travel patterns. We will document our observations to measure the travel and traffic impacts of the road diet pilot.

Route 28 southbound where it transitions from one lane to two
Route 28 southbound where it transitions from one lane to two

Vehicle Time Trials

We will regularly conduct time trials and drive up and down Main Street to measure travel times, evaluate driving conditions, and experience the impacts of the road diet on drivers.

Traffic Simulations

Before we finalized the design plans for the pilot lane configurations, we conducted traffic simulations using Synchro to test before & after conditions at four signalized intersections in the project area:

  • Main Street and Franklin Street
  • Main Street and Forest Street/Forest Glen Road
  • Main Street and Birch Meadow Drive
  • Main Street and Summer Avenue

The traffic simulations showed the new lane configurations would not result in significant delays. We will test those findings during the pilot. Information about the before & after conditions at each intersection can be found in the video presentation on the project homepage.

Contact

Address

10 Park Plaza
Boston, MA 02116
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