Use technology, scientific principles to plan functional design and operation for any mode of transportation and also provide safe, comfortable and economical movement of people and goods is known as transportation engineering.

Traffic Engg. is subset of Transportation Engg. It deals with planning, geometric design and

traffic design operations of roads, street and highways, their network , terminals ,abutting lands and relationships with other modes of transportation.

The main goal should be to provide a safe traffic system.

All sorts of anti safe things should not be allowed.

Driving Under Influence(DUI) or Driving While intoxicated offences should be strictly prohibited.

Public awareness should be increased. Traffic control system should be better

and faster.

Along with safety there are some other objectives to be maintained..

Speed-Comfort-Convenience-Economy-Environmental compatibility

It’s human characteristics to speeded up and tried to save their to reach their destination but traffic engineers should ensure that they can drive it comfortably.

Economy and Environmental compatibility are very important in traffic engg.

Transportation Demand is actually related to land use pattern and available transportation system and facilities.

It is a like a chain reaction if one happens then other will automatically turns on.

A prediction is made on traffic demand that can raise within 10~20 years in a location and if it varies around 20% then it is considered as a significant success.

In a build up city it is really very tough to solve those problems without damaging the existing things.

There are some ways to ease those problems such as..

Car pooling programs Sufficient public transport Improve roads quality Eliminate bottle neck locations Staggered working hours .

Most of the time traffic engineers design roads to transport vehicles, but it’s a wrong concept.

We should think about people and goods which is our main object to transport. If people and goods are transported then automatically vehicles are transported.

It is not so difficult to design a good transport system maintaining these concept.

There are national, regional and local transportation system along with highways and highway vehicles.

All over the road modes automobiles, bus transit ,trucking are principal user of highways system.

Expert Traffic Engineers should also provideInternal circulationParkingPedestrian areasTerminal

All highways have at least two lanes for the exclusive use of traffic in each direction.

All highways have full control of access.

The system must form a closed loop: all Interstate highways must begin and end at a junction with another Interstate highway.

Now in modern age or in the 21st

century some new problems have arrived in traffic engineering .

Such asUrban congestionGrowth ManagementReconstruction of existing highways

facilitiesSecurities of transportation

facilities

The Profession of traffic engineering is a broad and complex one. Nevertheless, it relies on key concepts and analyses and basic principles that do not change greatly overtime.