LOCOMOTION
destrians who, by reason of the distances they have to go, have had to jump on 'buses and take cabs—in a word, to bring in the high road to their aid. And the vehicular traffic of the street is essentially the high road traffic very roughly adapted to the new needs. The cab is a simple development of the carriage, the omnibus of the coach, and the supplementary traffic of the underground and electric railways is a by no means brilliantly imagined adaptation of the long-route railway. These are all still new things, experimental to the highest degree, changing and bound to change much more in the period of specialisation that is now beginning.
Now the first most probable development is a change in the omnibus and the omnibus railway. A point quite as important with these means of transit as actual speed of movement is frequency: time is wasted abundantly and most vexatiously at present in waiting and in accommodating one's arrangements to infrequent times of call and departure. The more frequent a local service, the more it comes to be relied upon. Another point—and one in which the omnibus has a great advantage over the railway—is that it should be possible to get on and off at any point, or at as many points on the route as possible. But this means a high proportion of stoppages, and a consequent loss of speed. There is, however, one conceivable means of transit that is not simply frequent but continuous, that may be joined or left at any point without a stoppage, that could be adapted to many existing streets at the level or quite easily sunken in tunnels, or elevated above the street level,
25
