To extend the lifespan of pavements and highways, there are several sustainable pavement programs that have been adopted in different parts of the world. These programs contribute to the sustainability and optimization of pavement serviceability. Sustainable pavement programs also help to reduce costs in the long run. While sustainable pavement programs have a lot of […]

When designing a highway there are several factors to consider, the main ones being geometric alignment, material choices, and structural design. Geometric Alignment Naturally, one of the most important things to consider when designing a highway is its physical geometry and proportions. To determine the physical layout that a highway will have to have engineers […]

While our highways and roadways provide a very necessary and convenient means of travel, they also take a toll in lives lost. Approximately 1.2 million people are killed in traffic accidents annually and another 50 million are injured. Among persons under the age of 50, auto accidents are the number one cause of death. Highway […]

Traffic signals maintain a level of order and control on America’s roadways. Children on their way to school wait for the traffic signal to give them the okay before they cross the busy road to their waiting buses. Pedestrians use traffic signals to help them safely cross a through-fare teeming with speeding cars. Drivers place […]

The efforts of the United States to design and build a national highway network began rather haphazardly with the passage of the Federal Aid Road Act of 1916. The Act allowed the provision of $75 million spread out over course of five years for matching funding to each state to create and maintain a national […]

There are several designs for highways and roadways. These designs require a lot of engineering as there are many factors that are considered in the design of highways. The most important fact considered is the expected average speed of the vehicles that will be passing through the highways. In other words, there are different types […]

The history of America’s highway system began with the Federal Aid Road Act of 1916. The passing of this bill introduced by the United States government spearheaded an effort to develop and construct a nationwide network of roadways and highways. It allotted a total of $75 million for matching state funds for improvement and construction […]

Highways play an important role in making travel easier and more expedient. This is of great assistance whether traveling for work or play as well as travel involving transporting goods. The highway system connects large metropolises and rural communities across the country. Highway systems have made expansion possible, provided a convenient means to travel for […]

The first step of any major public works projects, especially highways, is the collection and analysis of data. How this information is gathered and analyzed are hot topics and there are a wide variety of tools that highway planners have at their disposal to collect the information they need. Another issue arises when the question […]