An Ecological Analysis of Crash Risk Differences Between Access and Non-Access Controlled Highways an a Low-Income Country

Irshad Sodhar
Junaid A. Bhatti
Ajmal Khan Khoso
Naeem ullah Shiekh

Urbanization around highways is frequent in Low- and Middle-Income Countries (LMICs) and can affect traffic safety negatively if it is inadequately-planned. Access control has shown to reduce significantly highway crashes in developed countries, but this intervention has been explored to a lesser extent in LMICs. This case study aimed to compare crash risk differences between an access-controlled highway sections with that of non-access controlled sections in Pakistan. Using the aggregated data of crashes and vehicle-km travelled, crash fatality and pedestrian crash risks were compared between the 397 km-long sections of access controlled Motorway 1&2 (M1&2) and the 332-km-long non-access controlled road sections of N5 between cities of Attock and Lahore. The crash fatality risk per billion vehicle-km travelled were 47.2 on the access-controlled road sections and 47.4 on the non-access controlled road sections; these rates were over ten times higher than on similar roads in France. Pedestrian crash risks were significantly higher on non-access controlled road sections than access controlled road sections indicating that access control could reduce over two-thirds of pedestrian crashes on highways in Pakistan.



ERPUG 2017

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. 



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