To be to

1. This section of the track is to be reconstructed.

2. We were to leave for England on Saturday, but because of the delay with our visas we had to book tickets for Monday.

3. All the materials used for the railway car refurbishment are to comply with (соответствовать) fire safety standards.

4. In England, the speed of the first cars was not to exceed 4 mph.

5. Modern railways are to be completely automated to provide high-speed transportation.

6. At the Metro terminus (конечная станция), the driver is to move to the other end of the trainset.

To be able to

1. If the train comes in time, I will be able to watch the football match.

2. The first passenger trains didn’t travel very far, but they were able to transport more passengers over longer distances than any horse-powered wagons.

3. At the large terminal, passengers are able to book hotel or transport, to buy tickets for sporting and cultural events, to telephone or send mail to anywhere in the world, to hold a business meeting, to obtain information of interest and so on.

4. The new British train will be able to develop a very high speed, as it is equipped with more powerful engines.

5. For more than a hundred years, railways were able to maintain their dominant position in the field of transportation.