Задание

Установить соответствие заголовка (буква) и текста (цифра).

1. Modern roads. Modern roads should possess the following principal features. They should be designed according to the anticipated volume and speed of the traffic. Bends and gradients should always be slight. Visibility should not be hindered. They should he well lit. Hedge and tree planting on the road sides should provide a pleasant and interesting out look to avoid monotony and boredom.

Road construction. In modern road construction, there is much greater recognition of the importance of the subsoil beneath a road. It is regarded as an integral part of the road. In case of mechanical stabilization granular or cohesive materials are added to the subsoil. In dry climates it is necessary to add substances helping to retain sufficient moisture.

2. Transportation is a system consisting essentially of three components: driver, vehicle, and road. If any one of these components fails, the whole system would fail, and conditions of hazards would be created on the road.

To provide a safe and efficient transportation system, it is necessary that all of these three components should function in a well-coordinated manner.

3.Vehicle. This component also plays a vital part in determining safety on roads. An unsafe vehicle is a source of constant danger in a road transportation system.

4.Driver. Studies have shown that 86% of the serious accidents are caused by drivers.

5.Road. To ensure maximum safety for the transportation system, it is necessary to plan and design highways on sound engineering techniques.

B. Principal features of any road.

E. The main components of transportation

A. The reason of constant danger in the road.

D. Percentage of the serious accidents

C. The importance of the subsoil beneath a road