Vision Zero Community: A Mixed-Method Case Study on Engineering Intervention for Road Safety at Pulau Indah Highway, Klang

Elmi Alif Azmi; Nur Firyal Batrisha Zahari

doi:10.24191/jaeds.v6i1.156

Authors

Elmi Alif Azmi Faculty of Civil Engineering, Universiti Teknologi MARA, Shah Alam, Selangor, Malaysia
Nur Firyal Batrisha Zahari Faculty of Civil Engineering, Universiti Teknologi MARA, Shah Alam, Selangor, Malaysia

DOI:

https://doi.org/10.24191/jaeds.v6i1.156

Keywords:

Vision Zero, Road Safety Engineering, Automated Speed Enforcement

Abstract

This study utilizes a Vision Zero Community framework to analyse the Pulau Indah Highway (West Port, Klang) in identifying fatal crashes causes and proposing appropriate safety measures. Malaysia's industrial port-access highways still have tremendously high fatal and serious-injury crashes. Mainly, this is because of high vehicle speeds, the mixing of different types of traffic, and poor visibility at night. A Vision Zero Community oriented engineering approach was the backdrop of this study which analysed the safety of the Pulau Indah Highway (West Port, Klang) with the aim to unveil major causes of fatal crashes and suggest measures that would be based on research of this area. A mixed-method methodology was adopted that analysed fatal crashes data from the Jabatan Kerja Raya (JKR) spot-speed measurements collected with a radar speed gun on weekdays and weekends, field observations, and online questionnaire survey of road users (n = 400). Analysis of fatal crashes and speed data shows that 85th percentile speeds exceed during weekends. The findings show that straights and dry road segments were the most frequent locations for fatal collisions, with loss-of-control and rear-end collisions predominating, particularly in dimly lit areas at night. The speed analysis revealed consistently high operating speeds, with speeds exceeding the posted limits, particularly during weekends. Excessive speeding, dangerous heavy-vehicle behaviour, inadequate lighting, and poor pavement conditions were among the survey's main causes of fatal collisions, and it was widely accepted that the safety precautions in place had limited effectiveness. According to the study, the most important strategy to reduce the likelihood of deadly collisions on the Pulau Indah Highway is through speed restriction. Installing Automated Speed Enforcement (ASE) in conjunction with high-friction surface treatments and targeted roadway lighting upgrades is suggested as a workable and locally appropriate engineering solution that aligns with the Vision Zero principles that would clearly improve road user safety in the real world.

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