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関連する概念動画

Design Example: Alignment of a Road Line Using GIS01:17

Design Example: Alignment of a Road Line Using GIS

468
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...
468
Design Example: Joints in Concrete Pavements01:28

Design Example: Joints in Concrete Pavements

771
Concrete pavement joints are essential for maintaining the structural integrity and longevity of pavement by controlling where and how the pavement cracks. These joints can be categorized based on their functions, such as contraction or control joints, construction joints, isolation joints, and expansion joints.
Contraction joints are typically formed by sawing a groove into the concrete shortly after it has hardened. This creates a weakened vertical plane, deliberately encouraging cracking at...
771
Placing Concrete01:17

Placing Concrete

1.7K
The concrete is placed as close as possible to its final position to avoid segregation. The placed concrete is then fully compacted to expel the entrapped air, and the next layer of concrete is laid while the underlying layer is still in the plastic state. The rate at which concrete is placed and compacted is kept equal.
While placing concrete, care is taken to ensure that the concrete is laid in uniform layers, and hand shoveling and moving concrete using poker vibrators is avoided. Also,...
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Survey Safety01:28

Survey Safety

508
Surveying near highways, rough terrain, or power lines involves significant risks. Working along highways is particularly dangerous and requires the use of warning signs and flagmen. It is safest to avoid working directly on roads and use offsets whenever possible. When highway work is unavoidable, it must follow all safety guidelines. Surveyors should wear bright clothing, such as orange reflective vests, to ensure visibility to motorists, coworkers, and hunters. In construction zones, wearing...
508
Design Example: Managing Concrete Workability01:14

Design Example: Managing Concrete Workability

407
This example deals with managing the workability of concrete for a raft foundation project under hot weather conditions. Workability is crucial for ensuring the concrete is easy to place, compact, and finish. In this scenario, a slump test — a common method to measure the workability of fresh concrete — initially indicated low workability. This was attributed to the rapid water loss from the concrete mix, exacerbated by the high temperatures causing the course aggregates to heat up.
407
Design Example: Sustainability in Concrete Building01:26

Design Example: Sustainability in Concrete Building

545
As the construction industry moves towards more eco-friendly practices, concrete's adaptability and its ability to incorporate sustainable features make it a key material in the drive towards greener building solutions.
There are multiple approaches to achieve sustainability in a commercial concrete building. For instance, construct a concrete parking area under the building, utilizing pervious concrete paver blocks in open areas to facilitate rainwater collection through an underground...
545

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Updated: Apr 25, 2026

Evaluating the Effect of Roadside Parking on a Dual-Direction Urban Street
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Evaluating the Effect of Roadside Parking on a Dual-Direction Urban Street

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道路建設のためのグローバルな戦略

William F Laurance1, Gopalasamy Reuben Clements2, Sean Sloan1

  • 1Centre for Tropical Environmental and Sustainability Science, and College of Marine and Environmental Sciences, James Cook University, Cairns, Queensland 4878, Australia.

Nature
|August 28, 2014
PubMed
まとめ
この要約は機械生成です。

道路の拡張は2050年までに60%増加し,生物多様性に影響を及ぼします. この研究は,道路開発と保全と農業のニーズとのバランスをとる世界的な区画計画を提案しています.

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Design and Construction of an Urban Runoff Research Facility
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科学分野:

  • 環境科学 環境科学
  • 保護生物学とは,自然保護の生物学です.
  • 都市計画とは,都市計画です.

背景:

  • グローバル道路ネットワークは2050年までに60%拡大すると予測されており,開発途上国での建設が最も多くなっています.
  • 道路の拡張は,特に生物多様性のある地域では,生息地の消失,断片化,環境の悪化を促しています.
  • 現在の道路計画は,しばしば反応的であり,急速な拡大に追いつくのに苦労しています.

研究 の 目的:

  • 道路建設の優先順位を決めるためのグローバルな計画を提示する.
  • 環境コストを最小限に抑えながら,人間の開発,特に農業生産の利益を最大限に生かす.
  • 道路回避,戦略開発,紛争解決の分野を特定する.

主な方法:

  • 環境価値と農業の可能性のグローバル分析.
  • 道路インフラの大規模な区画計画の開発.
  • 道路建設と保全のための優先分野を特定する.

主要な成果:

  • 環境価値が高いため道路建設を避けるべき地域を特定する.
  • 戦略的な道路改善のための地域を指定し,環境への影響を最小限に抑え,農業を促進します.
  • 農業に多大な利益をもたらすが,重大な環境リスクをもたらす"紛争地域"の特定.

結論:

  • 開発の重要な時期における道路拡張の管理には,積極的な区画計画が不可欠です.
  • 道路建設を優先することで,環境への悪影響を軽減し,世界の食糧安全保障を支援することができます.
  • 提案された計画は,持続可能なインフラ開発と生物多様性の保全のためのテンプレートを提供します.