A STUDY ON TRAVEL TIME CHARACTERISTICS OF BUS SYSTEM IN DHAKA: ANALYZING DRIVERS' INTENTIONAL WAITING TIME FOR PASSENGER COLLECTION

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With the growing population of the megacity, Dhaka is facing severe deficiency in transportation sector. For its cheap fare, the main mode of transport for the poor is bus. Also it is the only option available as public transport. But the level of service of bus is not satisfactory. In addition to the insufficient public transportation system, Dhaka also lacks in infrastructure. On top of that, car ownership is increasing pretty rapidly piling up the traffic congestion. These sum up to a longer travel time; a significant portion of which is spent halting either for congestion or for collecting passengers. This study focuses on the stopping time and the moving time of a bus trip. The discrepancy between demand and supply of public transport is quite severe in Dhaka. When the demand is higher than supply during the peak period or near CBD area, buses get full and over-crowded at earlier stoppages. In such cases, drivers skip the later bus stops where people need to wait longer for bus. But the scene is completely reversed when demand is less than supply. In such cases, drivers tend to wait longer intentionally at the earlier bus stops in the hope of collecting sufficient passengers, termed here as intentional waiting time. This study tries to understand and verify the situation. The result suggest that the intentional waiting time influences the total stopping time significantly. Most of which occurs in the earlier sections of the route and with increasing distance from the origin, the waiting tendency keeps decreasing. The passenger boarding trend follows similar trend. Lack of guideline is one of the main reasons for such behavior and the demand, land use pattern, bus occupancy etc. are some of the major factors influencing intentional waiting to a great extent.

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