http://dspace.daffodilvarsity.edu.bd:8080/handle/123456789/5551 2026-07-01T15:33:47Z http://dspace.daffodilvarsity.edu.bd:8080/handle/123456789/17597 Improving The Urban Transportation System: A Road Inventory Survey and Traffic Count Analysis From Baipail to DEPZ,Bangladesh. Ahosan, Toufiq This study investigates the problems with urban transportation in Bangladesh and suggests solutions, with a particular emphasis on the vital route connecting Baipail and the Dhaka Export Processing Zone (DEPZ). Congestion on the roads and traffic volume have increased due to the area's growing industrial and urbanization, which has increased the demand for sustainable and effective transportation solutions. This study evaluates the existing road conditions, infrastructure, and transportation capacity along this important industrial route through a thorough road inventory survey. An analysis of traffic counts highlights important problems and operational inefficiencies by offering comprehensive information into vehicle kinds, peak congestion periods, and traffic flow patterns. Thesis 2025-01-06T00:00:00Z http://dspace.daffodilvarsity.edu.bd:8080/handle/123456789/17595 Observation of the Environmental Impact of Brick Manufacturing Process in Greater Dhaka Region, Bangladesh Rezon, Mahafuz Bin Moksed; Das, Sanjoy Kumar The most popular building material used to create buildings and other structures in Bangladesh is brick. Brickfields have sprung up all throughout the nation to provide brick locally. Brick manufacture has an influence on the environment, society, biology, and seasons. The method of making bricks has a growing negative impact on pollution. Year due to the growing number of brick kilns and brick manufacturing. An study has been conducted to assess the overall effects of brick production process on the environment and public health. We concentrated on the possible burden on theenvironment, which includes depletion of resources, contamination of the air, water, and soil, as well as negative impacts on agricultural output and human health. Through in-situ observations, questionnaire surveys, and interviews, the brick production stages of 15 brick fields are evaluated. In order to evaluate the safety concerns and poor management, we also concentrated on the Brickfields' management system. We also looked for a relationship between the impact of mismanagement and the environment on the brick-making process. According to the main conclusions of our investigation, a few suggestions are made to lessen the issues. The use of recycled and eco-friendly bricks, kiln systems that have been adapted, alternative fire technologies, training initiatives, and a secure workplace are among the primary recommendations. Thesis 2025-01-06T00:00:00Z http://dspace.daffodilvarsity.edu.bd:8080/handle/123456789/17594 Observation of The Pollution Source of The Turag And Karnatuli Rivers and It’s Impact On The Neighboring People Mahim, Md. Samiul Islam; Mahmud, Tanvir Despite being essential to Bangladesh's transportation, agriculture, and way of life, the Turag and Karnatuli rivers are severely contaminated as a result of urbanizat io n, industry, and human activity. Ecosystems, drinking water supplies, fisheries, and recreational activities are all negatively impacted by pollution from point sources, such as industrial effluents and municipal discharges, and nonpoint sources, such as agricultural runoff and urban drainage. According to surveys, 32% of visitors near both rivers encounter problems, while 68% say they have no problems. While 48% of those near the Turag River admit pollution-related issues, 31% of those near the Karnatuli River report specific health issues, including as rashes, skin illnesses, malaria, and eye irritation. These results highlight the pressing need for community-driven solutio ns, stricter enforcement of policies, and environmentally friendly water management to preserve and repair these vital rivers for coming generations. River contamination calls for specialized solutions to address certain problems. The main causes are pollut ion from brick factories, oil leaks from stimer, tannery and industrial trash, and direct wastewater discharge from Dhaka city. These actions have an adverse effect on ecosystems, human health, and water quality. Controlling industrial discharges, improving wastewater treatment, and strengthening waste management systems should be the main goals of specialized interventions. Thesis 2025-01-06T00:00:00Z http://dspace.daffodilvarsity.edu.bd:8080/handle/123456789/17593 Exploring Rice Husk Ash As a Replacement For Cement in Concrete Production Chowdhury, Rowshan Rays Chowdhury; Akash, Md Jahid Hasan This study explores the use of Rice Husk Ash (RHA) as a partial cement replacement in concrete to enhance sustainability and reduce the environmental impact of cement production. RHA, a by-product of rice milling, is rich in silica and exhibits pozzolanicproperties, making it a potential replacement for improving concrete performance. Concrete mixes were prepared with varying RHA proportions (0%, 2%, 4%, 6%, 8%, 10%, 12%, and 14%) to evaluate the effects on compressive strength, workability, and durability. Nevertheless, a large amount of cement is used in the manufacturing of conventional concrete, which greatly increases carbon emissions. Sustainable construction methods must minimize cement use while preserving mechanical performance. The most effectivecombination was found to be an 8% inclusion of RHA, which increased compressive strength by the control mix while maintaining enough porosity for efficient water permeability. Higher percentage mixtures, especially those containing above 8% such as 10%, 12% and 14% resulted in decreased mechanical performance. This study shows that adding 8% RHA to concrete improves its mechanical qualities and lessens the environmental impact of cement-based construction, providing a sustainable option for contemporary urban infrastructure. This research shows how best to use it and its correct ratio can be used if desired. Which is effective in an environment. After the test, it can be said that the 8% ratio is the most balanced. Thesis 2025-01-25T00:00:00Z