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Research Reports

MRR 199: Safety Evaluation Of Egress And Ingress Of Exclusive Motorcycle Lane At Federal Road 2

This report highlights the findings of the study conducted on exclusive motorcycle lane (EMCL) on Federal Road 2. Data collection was conducted in 2014 at five (5) types of egress and three (3) types of ingress. Types of data collected are non-conflict and with conflict interaction, motorcycle speed and traffic volume.  
 
Safety evaluation of each type of egress and ingress were based on the interaction between entering/exiting motorcyclist and through motorcyclist on the EMCL. Withconflict or unsafe interaction was defined based on the evasive action taken by a motorcyclist. The common evasive action observed on sites are an abrupt brake, swerving and noticeable accelerating taken by motorcyclists to avoid a crash. 

Findings show that no serious conflicts or unsafe interaction were observed at egress Type E2 (with auxiliary lane) and Type E4 (give way length more than 15 m). For ingress section, Type I4 (give way more than 15 m) is considered as the low-risk design with the lowest number of conflict or unsafe interaction observed (1.9%). In retrospect, the Y-access type recorded the highest serious conflict or unsafe interaction at both egress (30.5%) and ingress (54.6%) and considered as the most high-risk types of access. 
 
Based on the results obtained, the following recommendations were suggested: 
  1. Design of egress and ingress needs to be reviewed and further studied is needed to improve the safety of motorcyclist at the access point of EMCL. 
  2. The presence of auxiliary lane at the merging point of EMCL access is recommended to reduce risk at the access point of EMCL. 
  3. Warning sign and road marking on EMCL especially at access point can be improved to increase motorcyclist alertness and safety as a whole.  

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MRR199Conflict Faderal.pdf
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