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would be provided by high-capacity fans in the roof-space of cars allowing space for installing air-conditioning units should this prove necessary in future.
TRAIN FREQUENCY
15.
In order to achieve an average capacity of 45,000 passengers an hour for each line the system has been designed with trains operating on a 2-minuto headway during peak hours. This is generally accepted as the maximum frequency attainable and requires a very high degree of control over train movements, passenger handling, access to trains and loading/unloading. Semi-automatic control of train movements and signalling is recommended of the type now normal on new lines in London, Paris, Tokyo and a number of other cities. Once the driver has started the train, the automatic control system performs all the accelerating, decelerating and braking functions required to take the train to the next station. The signal and control equipment is capable of processing headways as low as 90 seconds.
TRAIN POWER
16.
Trains would be electrically driven and the power drawn from the two power companies' main supply at selected points through the system's sub-stations and distributed to the trains in the form of 1,500 volts direct current by means of a third rail.
TRAINS MISCELLANEOUS
17.
The Consultants recommend that the system should have only one class of travel, thus greatly simplifying the design of stations and passenger handling facilities while ensuring the maximum use of trains with inter-communicating cars.
18.
STATIONS
No smoking would be allowed on trains or platforms.
Passenger Handling.
19.
Stations have been designed wherever possible to provide "centre-island" platforms between the lines as this is the most efficient for speedy passenger handling. For the same reason the system provides for the physical separation of arriving and departing passengers so far as this is practicable.
20.
Fare Collection.
The Consultants' investigations indicated that it might be advantageous if automatic fare collec- tion equipment were installed from the beginning as it gives an overwhelming financial saving compared with manual methods of collection. The only factor that could affect this proposal would be a decision by the operating authority to introduce a greatly simplified fare structure with random checks of tickets or, possibly, to dispense with tickets entirely.
21.
Ventilation. The ventilation of the stations, tunnels and cars has been planned to give a satisfactory environment
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