- Highways connect two or more places and ensure that industries, employment, and development follow. Bridges, traffic lights, pavements, bike paths, and lane dividers make up a safe highway. Modern highways are known for their high capacity, efficiency, and planned construction. Highway networks are very important for the growth of a region. Highways open new trade routes and almost every industrial region in the world is connected to the major highway network system of that particular country.The topics collected in this guide will help you understand much of the terminology and theory of modern day highway engineering and construction. By using the links in the following sections, we will learn about different aspects of highway construction, design, and planning. We begin with the history of highway construction and the major changes highway construction has undergone up to this point.
History of Highways - From Dirt Tracks to Highway Bridges
Animals trails and dirt tracks were the first ever roads that human beings used to travel from one place to another. Icknield Way in England, Harrappan Roads in India, and Apian Way in Rome are examples of ancient roads, and their traces can still be seen. Gradually, human beings started moving out and the condition of roads also improved with time. Today we have highway bridges as high as 245 meters from the ground level.
Various Aspects of Designing and Constructing a Highway
Planning remains the most important part of the process of engineering construction, irrespective of the nature and type of construction. Planning works are followed by design works and once designs are completed, execution works are started. Planning is important because global population is increasing at an exponential rate; globalization and technological advancements have made things easier for people, but challenging for engineers. Planning helps in estimation of risks, capacity calculation, and it enables engineers to leave scope for any future modification or expansion of roads or bridges. In this section we find insightful articles about building roads over swamps, geometric design considerations of highways, and design aspects of constructing bridges. Articles related to highway road project management are also discussed in this section.- Geometric Design of Highways and Roadways
- Building Roads Over Swamps - An Engineering Guide
- Highway Road Project Management - Role of Manager
- Design Considerations for Bridge Construction Works
- Cost Effective Pavement Maintenance Methods
- Modern Bridge Construction Methods
- Working With Concrete - Repair of Concrete Cracks
Highway Construction Materials
Highway construction materials are selected on the basis of the type of highway, known and projected traffic density, and the climatic conditions of the region. At some places we manage with bitumen (asphalt) only, however, at some place concrete roads are required. Modern age engineers emphasize the use of eco-friendly methods to construct roads, bridges, and pavements. Maximizing the use of recycled waste products is a smart new trend that has actually helped in making better roads and highways- without doing much damage to our environment. In this group are articles about the importance of constructing green pavements using recycled waste products, using air entrained concrete in construction works, and an interesting comparison of concrete and asphalt roads.- Constructing Green Pavements - Effective Use of Recycled Tires
- Comparison of Asphalt and Concrete Roads
- Benefits of Using Air Entrained Concrete
- Effective Use of Recycled Concrete for Road Construction Works
- Paving Coatings to Fight Air Pollution
- Using Rubberized Asphalt Concrete for Road Construction
- Decomposed Granite for Road Building
Highway Safety Guidelines
Highway safety is an important aspect of highway construction and engineering. Designing a highway means adopting safety measures so that not only vehicular traffic stays safe, but the pedestrians and bikers also feel safe while moving on the highway. Bott's dots, traffic lights, pedestrian marking, zebra crossings, and traffic circles are some of the important aspects of highway design safety. GPS-based road traffic monitoring systems are one of the modern age inventions that make our road travel safe and efficient. Even bike traffic is also considered while safely designing the highway. Articles related to highway safety are discussed in this section.- Bott's Dots and Safe Driving
- Working of Traffic Light Systems Explained
- Roundabouts, Traffic Circles, and Modern Age Traffic
- GPS based Road Traffic Management System
- The Visual Signals of the Kanban System
- Safety Considerations for Safe Bike Paths
- Rumble Strips and Centerline Ruble Strips Create Safer Roads
- Responding to Rockfall Hazards Around Mountain Roads
- Guide to Road Traffic Safety Barriers
Wrapping Up
The articles included in this guide will provide a great information source for those interested in highway design and construction processes. These articles cover the most fundamental aspects of transportation engineering and also let you know about major design and planning considerations related to highway safety and operations.Are there additional topics in road construction, maintenance, and design that you would like to see covered at Bright Hub? If so, please add your suggestions in the comments section below. Please note that comments are moderated and will take some time to appear.
References
- All linked articles
- European Commission, New Road Construction Concepts (pdf), www.ec.europa.eu
- Image: Highway Construction by Idea go
