Simulation of Integrated Corridor Management in New York State Finds a Potential Full Trip Travel Time Savings of 30-40 Percent when Averaged across Incident Scenarios.

Microscopic Traffic Simulation Used to Estimate Potential Travel Time Savings for Integrated Corridor Management Strategies on the Long Island Expressway and Service Roads in Suffolk County.

Date Posted
09/23/2022
Identifier
2022-B01678
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Integrated Corridor Management (ICM) Concept Exploration: Suffolk County Department of Public Works and New York State Department of Transportation, Region 10

Summary Information

Integrated Corridor Management (ICM) is considered a key strategy in multimodal and multijurisdictional transportation systems management and operations including management of incident-related congestion along major corridors. Researchers used a data-driven approach to analyze the potential impacts of applying ICM in Suffolk County, New York. Available regional data sources, such as the Transportation Operations Coordination Committee (TRANSCOM) Data Fusion Engine (DFE) and New York State Region 10 INFORM Traffic Management Center, were used to identify and analyze historical incidents and quantify the impact of various ICM strategies on traffic using microscopic traffic simulation.

Methodology

The study area encompassed nine major roadways in Suffolk County, including three county roads, five state routes, and the Long Island Expressway (I-495). The trip pattern information from the New York Metropolitan Transportation Council Best Practice Model was supplemented by detailed turning movement counts obtained from a traffic data vendor to ensure the use of up-to-date traffic data. In addition, the extensive historical data available from the DFE was used to identify incident scenarios. The benefits of applying ICM response plans to selected incident scenarios on I-495 were evaluated using microscopic traffic simulation. Three incident scenarios were created in the model, and cases were run with and without response plans. The plans included using Variable Message Signs (VMS) to notify the road users, informing driving and decision-making via commonly used navigation apps, and modified traffic signal timing plans and use of enforcement personnel to handle detoured traffic. The analysis periods were focused on the weekday AM and PM peak periods on and around I-495 and service roads.

Findings

  • Based on the simulation results, the average time to travel the entire corridor was lower when the response plan was applied compared to the no action case. The improvement ranged from 17.2 to 48.9 percent, depending on the incident scenario and whether comparing the mainline or service road travel time.
  • Simulation cases where response plans were executed provided a travel time improvement that was in the range of 30–40 percent on average, and as much as 100 minutes for one service road trip scenario.

Integrated Corridor Management (ICM) Concept Exploration: Suffolk County Department of Public Works and New York State Department of Transportation, Region 10

Integrated Corridor Management (ICM) Concept Exploration: Suffolk County Department of Public Works and New York State Department of Transportation, Region 10
Source Publication Date
10/01/2021
Author
Muthuswamy, Satya; Paul Brueckner; Guanqi Liu; and Hasan Moonam
Publisher
Prepared by KLD Engineering, P.C. for New York State Energy Research and Development Authority and New York State Department of Transportation
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Results Type
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