H.—4o.

Table N. — Comparison of Traffic-density Ten Years Ago and at the Present Day.

By forecasting population and the increasing use of the motor-vehicle per unit of population based upon present trends it is possible to gain an approximate idea of the future growth of traffic. As a conservative estimate it has been calculated in this way that by 1945 the traffic on the roads of New Zealand will have increased by at least 30 per cent, since 1935. While such general conclusions may now be drawn concerning the future development of motor traffic, it will be possible at a later stage, when further records are obtained from traffic surveys similar to the one recorded in this report, to forecast the future traffic with some degree of accuracy not only on the reading system as a whole, but on individual routes.

Fig. 10.—Graph showing Increase in Petrol-consumption, 1915-35, and Increase in Motor-vehicle Registrations, 1925-35.

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o Average Number of Motor- Average Number of MotorMam Highway. Section. v | Mcles and ve lfic le s and Date. Great South Road .. Papatoetoe-Manurewa 455 (January, 1924). (Also 37 2,232 (January, 1935). (Also 10 horse-vehicles and 25 horse-vehicles and 10 horsemen) horsemen.) Kopu-Hamilton .. Te Aroha -Morrinsville 190 (January, 1924). (Also 116 504 (January, 1935). (Also 24 horse - vehicles and 47 horse - vehicles and 5 horsemen) horsemen.) Welling ton-Auckland.. Sanson-Bulls .. 329 (February, 1924). (Also 28 577 (Average for 1934-35). horse - vehicles and 36 (Also 1 horse-vehicle and horsemen) 6 horsemen.) Wellington-Auckland.. Levin-Foxton .. 113 (February, 1924). (Also 25 444 (Average for 1934-35). horse - vehicles and 29 (Also 1 horse-vehicle and horsemen) 3 horsemen.) Wellington-Auckland.. Porirua-Paremata .. 147 (February, 1926). (No re- 982 (January, 1935). (Also 5 cord of non-motor-traffic) horse - vehicles and 1 horseman.) Wellington-Napier .. Rimutaka Hill .. 114 (January, 1926). (No re- 411 (January, 1935). (Also 4 cord of non-motor-traffic) horse-vehicles, nil horsemen.)