Bøger af Abu Saleh MD Shahidullah

Movement in cities is not an end in itself. Movement of people occurs in order to gain access to people and things. But in car-oriented cities, activities tend to spread out. This forces people to travel further and further for the same level of accessibility as before. So the main concern of transportation planning should be on moving people and goods rather than vehicles. In dense cities, public transport saves valuable space and energy compared to private transport and can make a healthy profit at the same time. Bangladesh is one of the most densely populated cities of the world. To serve this high density Dhaka City, the capital of Bangladesh, needs efficient public transport system. This can be facilitated by the introduction of BRT. In this study a design proposal is made for the blue route; proposed in the Strategic Transport Plan for the city. Then the financial feasibility was analyzed using some popular tools like, break even analysis, benefit cost ratio, net present value, internal rate of return. From the analysis it was found that implementing BRT will be beneficial financially. So, to solve the transportation problems of Dhaka, BRT will be a very good choice.

Dhaka, the capital of Bangladesh, is facing an acute shortage of water supply during the summer. The water table becomes low and the tube-wells can not pump out the groundwater. This scenario is happening now because the only water supply authority for Dhaka city, Dhaka Water Supply and Sewerage Authority (DWASA), is mainly dependent on groundwater for providing water supply to the consumers. This had deteriorated the condition of groundwater. The groundwater table depleted to a very lower level for which the DWASA is abstracting water from a depth of 300 meter or more. With this the natural groundwater rechargeable area is diminishing with the increasing trend of urbanization. So the groundwater recharge rate has dropped too. A huge gap is created between groundwater abstraction and recharge. To reduce this gap artificial recharge method should be acquired. This study suggests the Percolation Pit with Bore method, which is used in various parts of India, to be used for artificial recharge. The study shows that a substantial increase in the groundwater recharge can be gained in this method.