No abstract

The Pedestrian Bridge (Indonesian: JPO) is a vital facility to reduce traffic conflicts and accidents. There is a need to optimize the use of JPO while encouraging sustainable infrastructure development. This requires sustainability criteria. This study aimed to develop and evaluate the implementation of a sustainable JPO criteria in Indonesia by constructing an ”eco JPO” prototype in Surakarta City. A qualitative and quantitative descriptive questionnaire instrument in the form of a Likert scale was used, and further analysis was done using interest performance analysis. The results showed that two criteria must be met, namely, planning criteria and design criteria. Planning criteria included suitability to people’s needs and location. The design criteria included seven measures: attractive design, environmentally friendly, energy self-sufficient, safe, artistic, comfortable, and safe. Based on the evaluation of the design criteria, the overall JPO criteria relatively had the same importance value, namely ”important” with values between 4.47 - 4.85, and weights between 5.8% - 6.57%. The satisfaction aspect showed a somewhat similar value, namely ”satisfied” with the grade between 3.67 - 4.61, and weights between 5.45% - 6.73%. Keywords: Sustainable, pedestrian bridge, criteria

Pedestrians are road users who are prone to accidents. Several studies related to the effectiveness of providing pedestrian bridges in Indonesia have shown a low level of utilization of pedestrian bridges. This study aims to determine the efficacy of providing an environmentally friendly pedestrian bridge prototype that was built by considering user needs from planning, design, and aesthetic criteria. Data were obtained through field surveys to get information on traffic conditions and bridge users and interviews to obtain information about crossing purposes and perceptions of needs. Statistical analysis of the average difference test was carried out to prevent bias in traffic conditions. Furthermore, descriptive statistical analysis was carried out to determine the effectiveness of providing pedestrian bridges obtained from comparing data processing results with the evaluation table. The results showed that the environmentally friendly Pedestrian Bridge prototype did not guarantee an increase in the number of users. Coercion through law enforcement and the installation of dividing lanes on the lanes can be seen as a solution. However, aesthetic and sustainable design is a necessity.

The development of red boxes for motorcycles in Indonesia was initially adopted from the advanced stop line (ASL) for bicycles. The bike box concept was adopted for motorcycles in Indonesia. To date, red boxes have been fully implemented in 21 cities in Indonesia. 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. 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 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. 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. 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 level of traffic flow is strongly correlated with the countdown timer and motorcycle lane.