Programming Police Enforcement in Highway Work Zones

Download
Erdong Chen
Andrew P. Tarko

Police enforcement is sometimes used by U.S. transportation agencies for safety improvement in work zones. The important question that must be answered by those responsible for programming police enforcement in work zones is: where, when and how to enforce? This paper presents a research conducted by the Purdue Center for Road Safety (CRS) for the Indiana Department of Transportation (INDOT) aimed to develop a tool for selecting work zones, periods of enforcement, and enforcement strategies that maximize the safety benefit within the available budget. This research included modeling of the crash frequency in work zones to better understand work zone safety factors and evaluating several police enforcement strategies through a carefully designed police enforcement experiment in selected work zones. The study has confirmed several findings of the previous studies and it has provided new results such as finding that Variable Message Sign units are highly effective in reducing drivers’ speed inside work zones. The practical outcome of this effort described in this paper is the Work Zone Police Enforcement Programming Tool (PEPT) used by INDOT to program cost-effective police enforcement activities.

MEET US


7
Dec

Shipping and the environment – research meets reality

Centre for Transport Studies (CTS) in co-operation with Ports of Stockholm invite you to the seminar Shipping and the environment – research meets reality.

LATEST NEWS


2017-10-26

Simulation of cut-in by manually driven vehicles in platooning scenarios

A study in a VTI-driving simulator has showed that a platoon will be able to handle a cut in from a manually driven car. The results of this study have recently been presented at two conferences in Japan.


2017-10-16

ERPUG Forum

The five-year anniversary of European Road Profile Users' Group (ERPUG) Forum will take place at Ramboll head quarter, Copenhagen, Denmark October 19-20, 2017.


2017-09-29

Self-driving buses in Sweden next year?

A self-driving, fossil-free bus. This idea might become reality through a forthcoming collaborative project involving the Swedish National Road and Transport Research Institute (VTI), Linköping University and several other participants. The project group aim...


2017-09-29

New climate-proof solutions for hard surfaces in cities

High-density road infrastructure that emphasise maximum durability and minimum maintenance create inflexible systems, which put increased stress on urban trees and lead to increased risk for flooding. Over the past five years, the ‘Climate-proof solutions for...


2017-09-29

VTI is preparing for automated vehicles

Automation of traffic systems will lead to major changes. The European Union’s (EU) CoEXist research project began in June 2017 with the aim of preparing cities and road operators for the introduction of self-driving vehicles. The Swedish National Road and...


2017-07-05

Vehicle Driver Monitoring: sleepiness and cognitive load

To prevent road crashes it is important to understand driver related contributing factors, which have been suggested to be the critical reason in 94 per cent of crashes. The overall aim of the project Vehicle Driver Monitoring has been to advance the...