发生变化的机构格局和孟加拉国达卡的交通发展
Rakibul Ahasan1, Md Nazmul Hoda2, Md Shaharier Alam3
1Urban and Rural Planning Discipline, Khulna University, Khulna, Bangladesh.
Heliyon
|July 17, 2023
概括
达卡达卡达卡达卡达卡达卡达卡达卡达卡达卡达卡达卡达卡达卡达卡达卡达卡达卡达卡达卡达卡
科学领域:
- 城市规划 城市规划
- 运输工程 运输工程
- 公共政策 公共政策
背景情况:
- 全球南方城市的快速城市化使交通基础设施受到压力.
- 由于人口增长和资源稀缺,达卡面临着重大的交通挑战.
- 现有的公共交通,比如地铁,还没有完全满足达卡日益增长的移动需求.
研究的目的:
- 检查50年来达卡交通部门制度安排的演变.
- 审查交通发展政策及其对城市流动性的影响.
- 确定阻碍有效提供运输服务的机构挑战.
主要方法:
- 城市交通中的制度结构和角色的历史分析.
- 审查交通运输发展政策和战略方法.
- 确定机构间协调问题及其后果.
主要成果:
- 多个组织参与达卡的交通系统,执行各种功能.
- 协调方面的挑战,不同的愿景和管辖权问题导致发展效率低下和重复努力.
- 过去的制度变革和政策实施并没有完全解决交通需求问题.
结论:
- 加强中央协调机构的能力和管辖权至关重要.
- 改善机构之间的协调对于有效的基础设施发展至关重要.
- 加强机构框架将改善达卡的流动性和可访问性.
相关概念视频
02:12Short-distance Transport of Resources
16.2K
Short-distance transport refers to transport that occurs over a distance of just 2-3 cells, crossing the plasma membrane in the process. Small uncharged molecules, such as oxygen, carbon dioxide, and water, can diffuse across the plasma membrane on their own. In contrast, ions and larger molecules require the assistance of transport proteins due to their charge or size. Transport across membranes also occurs within individual cells, playing a variety of essential roles for the plant as a whole.
16.2K
01:41Social Traps
22.4K
Social traps are negative situations where people get caught in a direction or relationship that later proves to be unpleasant, with no easy way to back out of or avoid. The concept was orignally introduced by John Platt who applied psychology to Garrett Hardin's "Tragedy of the Commons", where in New England herd owners could let their cattle graze in the common ground. This situation seems like a good idea, but an individual could have an advantage. If they owned...
22.4K
01:17Design Example: Alignment of a Road Line Using GIS
72
The alignment of a road line using Geographic Information Systems (GIS) is a critical process in civil engineering, combining advanced technology with practical decision-making. This methodology begins with the collection of geospatial data, including information on land cover, geomorphology, drainage patterns, slope, and contour details. Such data is typically acquired through satellite imagery and GIS tools, offering a comprehensive understanding of the terrain.Once the data is gathered, it...
72
01:43Sustainable Development
13.4K
As the human population continues to grow and use resources, we must be mindful of our planet’s natural limits. Sustainable development provides a pathway to maintain and improve human life now while also ensuring that future generations will have the resources that they need. The long-term success of sustainability efforts rests on understanding the interplay between human actions and ecological systems.
13.4K
01:19Facilitated Transport
12.4K
The chemical and physical properties of plasma membranes cause them to be selectively permeable. Since plasma membranes have both hydrophobic and hydrophilic regions, substances need to be able to transverse both regions. The hydrophobic area of membranes repels substances such as charged ions. Therefore, such substances need special membrane proteins to cross a membrane successfully. In facilitated transport, also known as facilitated diffusion, molecules and ions travel across a...
12.4K
01:30Thematic Layering in GIS
59
In the past, planning projects such as schools or public facilities required extensive manual effort to gather and compile data. Information such as property boundaries, soil characteristics, road networks, zoning regulations, and flood zones had to be sourced individually from courthouses, utility providers, and registry offices. Assembling these datasets into a coherent format often took several months, delaying project timelines.The introduction of Geographic Information Systems (GIS)...
59