![]() ![]() The development of red boxes for motorcycles in Indonesia was initially adopted from the advanced stop line (ASL) concept for bicycles which has been implemented in several cities in the United States and Canada such as San Francisco, Victoria, Boston, Madison, Portland, Chicago, New York, Austin, and Toronto. In addition, the high number of motorcycles is also due to the ride-hailing service that provides motorcycles with the advantages of cheap transportation costs and fast and reliable travel times. The high number of motorcycles is also caused by road conditions, such as many narrow roads, lack of collector roads, and poor road network connectivity, so people’s mobility depends on a flexible and low-cost mode of transportation, i.e., motorcycles. Motorcycles are also very popular in other Southeast Asian countries, such as Thailand, Malaysia, Philippines, and Vietnam because motorcycles are proven to be reliable and have financial benefits (i.e., reduced travel costs). Motorcycle in Indonesia is a mode of transportation that is used daily, so it has high mobility. Indonesian people generally choose motorcycle as their favorite mode of transportation because it has several advantages, such as relatively cheaper price and small dimensions, so that it is able to maneuver on narrow roads, does not require a large parking space, efficient fuel consumption, low vehicle taxes, and low maintenance costs. Meanwhile, the level of traffic flow is strongly correlated with the countdown timer and motorcycle lane. In addition, the correlation test shows that the countdown timer has a strong correlation with the occupancy of the red box to capacity and to stop line violation. Meanwhile, the presence of a motorcycle lane as an approach lane to enter the red box area has a significant influence on increasing the occupancy of the red box by motorcycles. The analysis results based on motorcycle volume data indicate that a countdown timer has a significant effect in increasing motorcycle acceleration when the green light starts, reducing the possibility of motorized vehicles other than motorcycles stopping in the red box area and reducing stop line violations while waiting during a red light. There were four locations studied in Denpasar Bali, i.e., red boxes with countdown timer only (Condition 1), red boxes with motorcycle lane only (Condition 2), red boxes with countdown timer and motorcycle lane (Condition 3), and red boxes without countdown timer and without motorcycle lane (Condition 4). The purpose of this study is to analyze the effect of traffic light countdown timers and motorcycle lanes as an approach to the red box for motorcycles at signalized intersections. To date, red boxes have been fully implemented in 21 cities in Indonesia. ![]() The bike box concept was adopted for motorcycles in Indonesia.
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