This study critically assesses the impact of converting the Dhaka-Chattogram National Highway (NH-1) in Bangladesh from an undivided two-lane to a four-lane highway with a median on crash rates and patterns. Crash data pre- and post-conversion was sourced from the Accident Research Institute (ARI) and the Bangladesh police headquarters for detailed analysis. The transition resulted in a notable decline in head-on collision-related fatal crashes. However, concerning trends emerged post-conversion, revealing an increase in various other significant crash types and associated injuries and fatalities, particularly those involving pedestrians. Effective countermeasures are recommended based on the study findings to mitigate highway crashes and their severity. This investigation provides critical insights into the dynamics of highway safety post-expansion, highlighting the necessity for targeted interventions to address emerging risks and enhance overall safety on NH-1.


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    Title :

    Before-After Analysis of Highway Crashes on the Dhaka-Chattogram National Highway of Bangladesh


    Contributors:

    Conference:

    International Conference on Transportation and Development 2024 ; 2024 ; Atlanta, Georgia



    Publication date :

    2024-06-13




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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