Acceptance and Use of Lane Change Assistance System Among Early Adopters in Malaysia

Background and Context

Road traffic injuries represent a leading cause of death and disability in Malaysia. The country’s road fatality rate, while declining in recent years due to enforcement and infrastructure improvements, remains among the highest in the ASEAN region. Lane change manoeuvres — particularly those involving blind spot zones where adjacent vehicles cannot be seen through standard mirrors — account for a meaningful proportion of road traffic crashes. These incidents frequently involve passenger vehicles on multi-lane highways and urban expressways, where traffic density and speed differentials create challenging driving conditions.

Lane Change Assistance (LCA) systems are a category of Advanced Driver Assistance System (ADAS) designed to mitigate blind spot-related crash risk. These systems typically use radar or camera sensors mounted on the vehicle’s exterior to detect vehicles in adjacent lanes, providing visual, audible, or haptic alerts to the driver when a lane change would be unsafe. Some more advanced systems incorporate active steering intervention to prevent the manoeuvre. The effectiveness of LCA in reducing crash risk depends critically on driver acceptance and proper use of the technology — a system that drivers find confusing, distracting, or unnecessary may be disabled or ignored, negating its safety potential.

The ASEAN NCAP Context

The ASEAN New Car Assessment Program (ASEAN NCAP), headquartered at the Malaysian Institute of Road Safety Research (MIROS), evaluates the crash safety performance of new vehicles sold in the Southeast Asian market. The ASEAN NCAP 2017 Rating Scheme expanded its assessment criteria to include consideration of advanced driver assistance technologies, including LCA systems. This policy development was expected to incentivise vehicle manufacturers to include ADAS features as standard or optional equipment in vehicles marketed in the ASEAN region, thereby increasing the volume of LCA-equipped vehicles on Malaysian roads.

However, the transition from technology availability to technology effectiveness depends on the human factor — specifically, whether drivers understand, accept, and correctly use these assistance systems. Previous international studies have shown that driver acceptance of ADAS varies considerably across technologies, markets, and user demographics. Some drivers welcome the additional safety margin provided by these systems, while others perceive them as intrusive, unnecessary, or potentially unreliable. Understanding the Malaysian driver’s perspective is essential for informing both vehicle safety policy and consumer education strategies.

Study Design and Theoretical Framework

This study assessed the acceptance and use of LCA systems among early adopters in Malaysia — that is, drivers who had purchased vehicles equipped with this technology relatively early in its market introduction. A structured survey instrument based on the Technology Acceptance Model (TAM) was administered to vehicle owners across multiple automotive brands offering LCA as a standard or optional feature. The TAM framework, originally developed for information technology contexts, proposes that an individual’s intention to use a technology is determined primarily by perceived usefulness (the degree to which the technology improves performance) and perceived ease of use (the degree to which the technology is effortless to operate).

Sampling was conducted in two stages to ensure representation across vehicle brands and geographic regions. Descriptive statistics characterised the study population’s demographics, driving patterns, and self-reported LCA usage. Regression analyses examined the relationships between TAM constructs and actual system use.

Driver Acceptance and Usage Patterns

The results indicated generally positive acceptance of LCA technology among Malaysian early adopters. The majority of respondents reported keeping the system activated during routine driving, suggesting that the technology was perceived as helpful rather than intrusive. Perceived usefulness and perceived ease of use were both significant predictors of the intention to continue using the LCA system, consistent with the TAM framework’s predictions.

Drivers who reported positive experiences with LCA — including instances where the system alerted them to vehicles they had not noticed in their blind spots — expressed higher satisfaction and stronger intentions to purchase vehicles with similar technology in the future. Conversely, some drivers reported occasional false alerts (particularly in congested traffic conditions) as a source of annoyance, though this did not generally lead to system deactivation.

Implications for Road Safety Policy

The findings support the inclusion of LCA and similar ADAS technologies in vehicle safety assessment frameworks such as ASEAN NCAP. As the penetration of ADAS-equipped vehicles in the Malaysian fleet increases, the cumulative public health impact in terms of crash prevention and injury reduction could be substantial. However, realising this potential requires complementary strategies including driver education on the capabilities and limitations of assistance systems, quality standards for aftermarket ADAS products, and integration of ADAS awareness into driving licence curricula.

The MIROS Intelligent Transport Systems roadmap (2021-2030) provides a strategic framework for promoting the adoption of vehicle safety technologies in Malaysia. This study contributes empirical evidence on driver acceptance that can inform the roadmap’s implementation priorities and consumer engagement strategies.

Limitations

The study focused on early adopters, who may be more technologically literate and positively predisposed towards new vehicle technologies than the general driving population. The TAM framework, while widely validated, may not fully capture culturally specific factors influencing technology acceptance in the Malaysian context. Self-reported usage data may not accurately reflect actual system use. Longer-term studies tracking both usage patterns and crash involvement among LCA-equipped versus non-equipped vehicles would provide stronger evidence for the technology’s real-world safety effectiveness.

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