Comprehension check

4. Answer the following questions:

1. What does the life of the road structure depend on?

2. What does maintenance include?

3. It is better to maintain and rehabilitate existing roads than construct new ones, isn’t it?

4. What types of maintenance are there?

5. What are the ways of reconstruction of deteriorated pavements?

6. What means of protection from snow do you know?

7. What kinds of machines are used to protect roads from snowdrifts?

8. Do most of roads and highways meet the requirements of modern traffic?

Vocabulary practice

5. Choose the right translation of the word:

1. to prevent a) насыщать b) предотвращать с) сохранять

2. binder a) покрытие b) маршрут с) вяжущее вещество

3. to spread а) улучшать b) распределять с) обрабатывать

4. to reduce a) регулировать b) уменьшать с) насыпать

5. to penetrate a) проникать b) размещать с) противостоять

6. alignment a) конструкция b) трасса с) устойчивость

7. to deteriorate a) удалять b) ухудшать с) улучшать

6. Match the words in A with an appropriate ending in B:

7. Fill in the blanks using the words below and translate the sentences:

to suit, slippery, to clear, conditions, caused, bends

Driving in bad weather _______ creates extra difficulties. An early indication of likely weather conditions allows motorists to change their driving _______ those conditions. Statistics also show that such early warnings (предупреждения) have saved lives, particularly at dangerous ______. For example, in Finland where most travel is by road, and where one in four accidents are ______ by speeding on icy roads warning of coming snow or ice is essential. This allows road workers _______snow and prevent ________ surfaces, thus preventing many accidents.

Language focus

8. Read and translate the following words paying attention to the prefix “re-”:

resurface, reconstruct, restore, replace, remove, remix.

9. Form nouns from the following verbs and translate them:

to care - . . .; to improve - . . .; to repair - . . .;

to treat - . . .; to wire - . . .; to deteriorate - . . .;

to attach - . . .; to align - . . .; to strengthen - . . .;

to protect - . . , to remove - . . , to smooth - . . . ..

10. Match the words with their synonyms:

a) to continue, shoulder, to spread, to plan, to connect, damage, traction.

b) failure, wayside, to prolong, adhesion, to schedule, to scatter, to wire.

11. Match the words with their antonyms:

a) to improve, to destroy, to narrow, restoration, final, under.

b) initial, to rehabilitate, failure, above, to widen, to deteriorate.

Speaking

12. Speak on:

1. The significance of maintenance for the life of a road.

2. The main types of maintenance activities.

3. Ways of repairing damage and resurfacing.

4. Maintenance activities in winter.

UNIT XII. ROAD JUNCTIONS AND INTERSECTIONS

Pre-reading tasks 1

1. Translate the following words and memorize them:

2. Match the equivalents:

1. overpass a) затор (в движении транспорта)

2. to drop speed b) сквозной проезд

3. underpass c) пересечение в форме клеверного листа

4. segregation d) площадь кругового движения

5. safeguards e) снижать скорость

6. clover-leaf junction f) сближение, схождение в одной точке

7. roundabout g) путепровод под дорогой, подземный переход

8. convergence h) разделение потоков движения

9. congestion i) путепровод над дорогой; эстакада

10. through route j) меры безопасности

Reading task 1

3. Read the text carefully and do the tasks that follow:

A road junction, as the term is generally used, is the point at which one road meets another; an intersection is the point at which two or more roads cross each other. Both junctions and intersections are, of course, the worst danger spots in a road system.

The problems of reducing danger at these points are those of cost and space. If junctions and intersections are such that all classes of traffic meet each other at the same level, there is a danger of collision, not only between cars of the same class but between those of different classes. Almost complete segregation of different classes can be achieved, and the need for users of the same class to cross traffic streams, the most dangerous process of all, can be avoided.

The perfect example of complete segregation of different classes of traffic and of the avoidance of crossing traffic streams is the clover-leaf junction, at which no collision can occur between vehicles if the drivers of those leaving the junction can manage to avoid those already on the road which they are approaching - which is a difficult thing.

All forms of road junction can be classified into three groups: multi-level junctions, roundabouts and flyover-junctions.

a) Multi-level junctions. The clover-leaf, the most typical of these, has already been mentioned. There is need for multilevel intersections where three conditions are fulfilled:

1. only a small percentage of the traffic must turn to left or right, and;

2. the major volume of traffic is travelling on a fast through route;

3. the volume of traffic would otherwise be sufficient to justify the provision of a roundabout.

b) Roundabouts. Unlike multi-level intersections, roundabouts do not enable traffic to cross without dropping speed but pedestrians and cyclists cannot be segregated unless costly over- or under-passes are constructed.

The success of a roundabout depends greatly upon the ease with which vehicles using it can "weave" or pass from one traffic lane to another. The greater the length of the road in which the weaving can be carried out and the smaller the angle of approach of converging streams of traffic, the more easily can weaving be performed. The angle should not be greater than 30 degrees. The greater the diameter of the island, the smaller the angle of convergence.

c) Flyover-junctions. These have been developed chiefly at places where there are no pedestrians (and cyclists are few, if any). These "flyovers", which enable high speeds to be maintained, are extremely expensive, costing about ten times as much as a roundabout, so it is much better to have ten roundabouts at ten dangerous junctions than a single flyover at a single junction.