Are Dilemma Zone Protection Systems Useful on High Speed Arterials with Signal Coordination? A Case Study

Bhaven Naik; Justice Appiah; Laurence R. Rilett

doi:10.1007/s13177-019-00193-2

Are Dilemma Zone Protection Systems Useful on High Speed Arterials with Signal Coordination? A Case Study

Bhaven Naik, Justice Appiah, Laurence R. Rilett

Civil Engineering

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

This study assessed the potential deployment of Actuated Advance Warning (AAW) systems on arterials where traffic signals are closely spaced and operate in coordinated mode. Traffic microsimulation and surrogate safety analyses were used to assess the potential safety and operational benefits. The results indicated that, on average, there were 30%, 7% and 30% reductions in the number of rear-end, lane change and crossing conflicts when the AAW system was used. The relative productivity of the system – vehicles processed during a specified period revealed more throughput. These findings can be useful guidance to transportations agencies as they consider potential AAW deployments.

Original language	English (US)
Pages (from-to)	219-229
Number of pages	11
Journal	International Journal of Intelligent Transportation Systems Research
Volume	18
Issue number	2
DOIs	https://doi.org/10.1007/s13177-019-00193-2
State	Published - May 1 2020

Keywords

Advance warning
Coordination
Dilemma zone
High-speed arterials
Safety

ASJC Scopus subject areas

General Neuroscience

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10.1007/s13177-019-00193-2

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title = "Are Dilemma Zone Protection Systems Useful on High Speed Arterials with Signal Coordination? A Case Study",

abstract = "This study assessed the potential deployment of Actuated Advance Warning (AAW) systems on arterials where traffic signals are closely spaced and operate in coordinated mode. Traffic microsimulation and surrogate safety analyses were used to assess the potential safety and operational benefits. The results indicated that, on average, there were 30%, 7% and 30% reductions in the number of rear-end, lane change and crossing conflicts when the AAW system was used. The relative productivity of the system – vehicles processed during a specified period revealed more throughput. These findings can be useful guidance to transportations agencies as they consider potential AAW deployments.",

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AU - Appiah, Justice

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AB - This study assessed the potential deployment of Actuated Advance Warning (AAW) systems on arterials where traffic signals are closely spaced and operate in coordinated mode. Traffic microsimulation and surrogate safety analyses were used to assess the potential safety and operational benefits. The results indicated that, on average, there were 30%, 7% and 30% reductions in the number of rear-end, lane change and crossing conflicts when the AAW system was used. The relative productivity of the system – vehicles processed during a specified period revealed more throughput. These findings can be useful guidance to transportations agencies as they consider potential AAW deployments.

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KW - Safety

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Are Dilemma Zone Protection Systems Useful on High Speed Arterials with Signal Coordination? A Case Study

Abstract

Keywords

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