Learn and get Best civil engineering subject wise Notes, Lectures, Excel templates and Software knowledge at one place
Drive fast into a bend and one of two bad things can happen. The vehicle can slide sideways off the road, or it can tip over onto its side. Which of the two you get is not luck — it is decided by the shape of the vehicle and the grip of the road, and…
Every road must satisfy one non-negotiable condition: a driver travelling at the design speed must be able to see far enough ahead to stop before hitting anything. That required distance is the stopping sight distance, and it is the single most examined quantity in this whole chapter. This post derives it from first principles, shows exactly…
A road is only as safe as the distance a driver can see along it. Give someone enough warning and almost any hazard can be handled. Take that warning away and even a slow-moving obstacle becomes lethal. That visible distance has a name — sight distance — and designing for it is one of the central tasks…
Two of the deadliest words in road safety are “head-on”. When two vehicles collide front to front, their speeds add together, and the impact is far worse than any other kind of crash at the same speed. Almost everything in this topic exists to make that particular collision impossible. This post covers traffic separators and…
Most students memorise two numbers here — a single lane is 3.75 m and each lane of a two-lane road is 3.5 m — and then get puzzled. Why would one lane on its own need to be wider than one lane sitting beside another? Surely a vehicle is the same size either way. There is a…
Stand at the edge of any road and look across it. You will notice the centre sits a little higher than the two edges. That gentle hump is not an accident of construction — it is designed, it is measured, and it has a name: camber. This post explains camber in simple language, covers every value…
Every road you have travelled on was shaped by a set of decisions. How wide should it be? How sharply can it turn? How steeply can it climb? How far ahead must a driver be able to see? Answering those questions is what we call geometric design, and it is where the study of highway engineering…
If you’re a site engineer, project manager, or civil engineering student, you already know that a construction site runs on paperwork as much as it runs on concrete and steel. Among all the forms you’ll fill out, none is more important — or more used — than the Daily Site Report (DSR). In this post,…
Introduction Highway Engineering is one of the most important subjects in Civil Engineering. It deals with the planning, design, construction, operation, maintenance, and improvement of roads and highways to ensure the safe, efficient, and economical movement of people and goods. Whether you are preparing for GATE, SSC JE, RRB JE, State AE/JE, or university examinations,…
Retaining Wall Introduction Retaining Wall is a crucial structural element to retain the earthwork in the construction or we can also say that to retain the lateral pressure of soil and retain it on different height on the two sides. Retaining wall can be use during various construction activities, such as highway construction, hilly area…
