Methodology for calculating passenger capacity in bus rapid transit systems: Application to the TransMilenio system in Bogotá, Colombia
Transit textbooks and engineering manuals indicate that the capacity of Bus Rapid Transit –BRT – systems does not exceed 20,000 passengers per hour per direction. The implementation of the TransMilenio BRT System, in Bogotá, Colombia, showed that the systematic combination of multiple platforms at stations, overtaking lanes, level boarding, prepayment, large buses with multiple doors, express and local services, and traffic engineering measures at intersections, allow for very large passenger throughput. Measurements indicate actual throughput of 43,000 passengers per hour per direction with average bus occupancy of 150 passengers per articulated bus, and a commercial speed of 22–24 km/h. According to special formulas developed for the analysis of high capacity BRT corridors, the critical section of TransMilenio has a practical capacity of 48,000 passengers per hour per direction with its existing infrastructure and 150 passengers per bus – 35,000 passengers per hour per direction with 110 passengers per bus. Changes in existing infrastructure, such as additional platforms, higher capacity vehicles, non-grade facilities at critical intersections, among other improvements, may increase the capacity, speed, reliability and quality of service of the system.
TransMilenio BRT system in Bogota, high performance and positive impact – Main results of an ex-post evaluation
User perception of Bogotá’s integrated public transport system: trends and implications for program implementation
Several cities in the developing world are transforming decentralized bus transit services into integrated transit systems. These programs aspire to improve service quality and mitigate negative impacts, such as pollution and traffic injuries and deaths. However, implementation processes in Santiago, Chile and elsewhere have proven difficult. One contributing factor has been a lack of integration of community concerns in the planning process. In this paper, we provide a framework for direct identification of user needs and apply it to the ongoing process in Bogotá, Colombia. Bogotá is integrating its BRT system with reorganized bus services throughout the city. Using expert interviews and a semi-structured community survey, we identify awareness, expectations and aspiration gaps, as well as equity concerns. We also suggest specific actions to improve user information during system implementation. The methods developed for this research and understanding of Bogotá’s lessons are useful for improving planning and implementation of other large-scale transit integration processes.
Passenger capacity in BRT systems: formula development and application to the TransMilenio System in Bogota, Colombia
Transit textbooks and engineering manuals indicate that the capacity of Bus Rapid Transit –BRT – systems does not exceed 20,000 passengers per hour per direction. The implementation of the TransMilenio BRT System, in Bogotá, Colombia, showed that the systematic combination of multiple platforms at stations, overtaking lanes, level boarding, prepayment, large buses with multiple doors, express and local services, and traffic engineering measures at intersections, allow for very large passenger throughput. Measurements indicate actual throughput of 43,000 passengers per hour per direction with an average bus occupancy of 150 passengers per articulated bus, and a commercial speed of 22-24 km/hour. According to special formulae developed for the analysis of high capacity BRT corridors, the critical section of TransMilenio has a practical capacity of 48,000 passengers per hour per direction with its existing infrastructure and 150 passengers per bus – 35,000 passengers per hour per direction with 110 passengers per bus. Changes in existing infrastructure, such as additional platforms, higher capacity vehicles, non-grade facilities at critical intersections, among other improvements, may increase the capacity, speed, reliability and quality of service of the system.
