Method of collection of traffic volume count data

Traffic volume count can be collected by the following methods:- Manual counting:- In this method, a field team of enumerators (traffic persons) is deputed to record traffic volume on the prescribed record sheets in a specified period. A sample of the field sheet which is used for traffic counts.The main...

Purposes of Traffic Volume Study

Here is few purposes of traffic volume study:- To establish relative importance of any route or road facility. To decide the priority for improvement and expansion of a road and to allot the funds accordingly. To plan and design the existing and new facilities of traffic operations on the road. To make analysis...

Purposes Of Traffic Studies

Here is a few purposes To collect the data about type and volume traffic at present and to estimate the same that the road is expected to carry in near future. To determine the existing facilities such as traffic regulation and control intersection, etc. provided on roads so as to decide the priority for...

Information To be Collected During Traffic Studies

The following information are usually collected during traffic studies:- Type of traffic:- It means representation of traffic either by weight or by shape like trucks, buses, private cars, horse-driven vehicles, Single-bullock, double-bullock vehicles, motor cycles, auto-rickshaws, rickshaws, cycles or any...

What is Map Study or Paper Location?

The process of marking several possible alternative alignments of a road on the topographic map of the area is known as Map Study or Paper Location. A topographic map shows the nature of the area by means of contour lines. This map also shows the position  of Obligatory points such as important towns,...

What Is Road Drainage? Modes Of Water Penetration

The process of removing and controlling the access of surface and sub-surface water within the right-of-way of a road is called road drainage. It also include interception ( collection ) and diversion of water from the road surface and the subgrade. The process of interception and diversion of surface water...

Types Of Earth Roads

Earth roads are of the following two types:- 1) Ordinary earth roads :- The earth road having its foundation and wearing surface consisting of one or two compacted layers of natural soil available along its alignment is called an ordinary earth road. This is the lowest form of pavement surface used so far and...

Construction Of Earth Roads

Earth roads are constructed as detailed below :- Material required :- The materials required for the construction of an ordinary earth road are natural soil, originally availableat site, a suitable stabilizer, if required. The ideal composition of soil which is recommended for construction earth roads. Method...

Requirements Of A Good Road Aggregate

Road aggregate forms the princpal material in the construction of road pavements. Therefore, it should be of good quality. A good road aggregate should fulfill the following requirements:- 1. Hardness :- A good road aggregate should be sufficiently hard i.e. it should offer maximum possible resistance to abrasion. This...

Types Of Curves On Hill Roads

The following are the important types of curves provided on hill Roads:- Hair-Pin Curves ; Salient Curves ; Re-entrant Curves. 1. Hair-pin curves :- The curve in a hill road which changes its direction through an angle of 180 degree  or so, downthe hill on the same side is known as hair-pin curve. A...