Development of weaving section flow model of conventional roundabout / Jezan Md Diah

Roundabout has been used and becomes popular in sub-urban residential areas as one of a viable traffic control system at intersections. At roundabout vehicles need to make a circulatory movement before exiting to their respective directions without having to stop, thus minimize delay. Studies on roundabout capacity and performance mostly focus on geometric configuration and flow at the entry, on the basis and acceptance of offside priority rule. Studies had shown that offside priority is most appropriate and efficient with small and mini roundabout. As for conventional roundabout or those with inscribe diameter DI > 50 m, the approach may give rise to differences in predicted capacities

The Opportunities and Challenges Overview: Implementing Performance Based Standards Regulation for High Capacity Passenger Vehicle in Malaysia

Road accidents involving heavy commercial passenger vehicle (HCPV) in Malaysia have always been in the spotlight and various efforts have been taken with much attention given on operational issues. At present, the weight and dimensions of HCPV in Malaysia generally regulated under prescriptive standards regulations which do not provide clear safety outcomes and often limits the flexibility about how to achieve it. This paper provides an overview of opportunities and challenges of implementing Performance Based Standards (PBS) regulation for HCPV vehicle in Malaysia based on the Australian PBS regulation implementation for heavy vehicle. It was found that Tail Swing, Braking Efficiency and Maximum Stable Inclination Angle under the existing regulation have or partly met the PBS approach. The opportunities for implementing PBS regulation were explained in terms of the possibility adopting PBS approaches in the existing regulation and second, the institutional readiness to develop and implement it. However, challenges were expected, for example increase in cost of vehicle’s assessment. Implementing PBS regulation for HCPV in Malaysia will provide various benefits such as increase productivity, efficiency and most importantly safety

Long Bus Vehicle Rear Swing Out Impact Assessment Using On-Board Video Camera

The current maximum allowable overall length of bus for Malaysia is only 12.2 m. However, the government had gazetted the United Nations Regulation (UNR) 107 and due to be implemented in July 2017. The implementation of UNR107 among others will allow the use of bus for overall length more than 12.2 m.This study investigates the manoeuvrability of single rigid, 15-metre bus based on its rear swing out impact. The rear swing out impact assessment of longer bus (15-metre) was made by recording a video from a video camera mounted on the rear, pointing rearward of a single rigid, 12-metre bus during manoeuvre. The video camera view angle was set to represent the excessive 3 m of longer bus and any infrastructures that appeared in the view were identified as the possible impact. From the video recording, it was found that longer bus will have a minimal manoeuvrability issues on the road. However, modification may be needed specifically at tight intersection or small roundabout to allow a smooth manoeuvrability of longer bus

Assessing Road Accident Black Spots and Countermeasures in the State of Perak, Malaysia

To develop a successful strategy for improving road safety, the initial step involves is to identify the black spots that are more susceptible to high-risk traffic accidents. However, due to the high cost of implementing safety measures in these locations, only a limited number of spots/sites can be thoroughly examined with the available funding. Therefore, it is crucial to prioritize the high-risk sites and their corresponding safety measures in order to make the most efficient use of the available finances. Hence, this paper presents black spots ranking and low-cost countermeasures based on the Perak Federal trunk road traffic crash (RTC) data for three years from 2018 to 2020 recorded by the Royal Malaysian Police (RMP). The weightage point method was used for each black spot  ranking exercise where as, the selection for countermeasures were based on RTC situations which are norms practiced by the Public Works Department (PWD). In total 22 black spots were ranked and it was found that the highest rank of the 2020 black spots in Perak was along route FT005 in Kinta district which had 18 RTCs and with a total weightage points (TWP) of 118.2. In balancing between limited financial allocation and improving road safety, the countermeasures were priorotized for implementation in 2021 based on the black spots ranking results. However, only six black spots were treated in 2021 with the entire cost was RM 1,834,027.19.  Where for route FT005 in Kinta district, the countermeasure was done at Section 684 with a total cost of RM350,000 under the 2022 black spots countermeasure program which is an annual program funded by the Ministry of Works Malaysia. It is recommended that Perak State PWD form a Road Safety Unit to reduce the black spots along the state roads which is the second highest road fatalities recorded in Perak

Parents’ awareness on compliance with the use of child restraint system: a quantitative pilot study at kindergarten and nursery in Parit Raja, Batu Pahat, Johor

It has been reported that children transported in private vehicles are the leading groups of casualties among those aged 1 to 9 years old in Malaysia. Child Restraint System (CRS) is made mandatory on 1 January 2020 to reduce road fatalities among those vulnerable children. However, study found that the use of CRS is still at an unsatisfactory level even though the law has been enforced. Hence, this pilot study was conducted to determine the awareness, usage, and compliance with the use of child restraint system by means of quantitative measures. Questionnaire and observation survey were conducted in 6 participating kindergartens and nurseries in Parit Raja and received a total of 34 respondents. The self-reported survey results show that 97.1% of the respondents are aware of the enforcement on 1 January 2020, only 35.3% of the parents used CRS every time riding in a vehicle. Challenges in complying with the use of CRS are household income, lack of awareness program and knowledge on the importance of CRS. Parents who send their children to government kindergartens by 4-wheel vehicle are observed to not use CRS. In short, parents in this pilot study show that they are aware of the risks of not using CRS, but majority is still unable to comply with CRS usage