Development of Traffic Volumes
With the rise in traffic volumes during the past decades, motor vehicle (MV) traffic has caused increasingly serious problems and pollution. Due to its high spatial demands, the water pollution it causes, its cutting effect on urban space and its heavy utilization of the public road space, motor vehicle traffic decreases the quality of life and of visiting, especially in urban residential areas. With the growth in traffic volume, the numbers of traffic accidents, and with it, the number of traffic fatalities and injuries, has climbed. The near-ground air pollutant emissions pose a considerable threat to health, especially in the inner-city area. In addition, growing traffic noise is damaging to physical, psychological and social well-being.
In the foreseeable future, no reduction in traffic volume is to be expected. With the opening of the inner-German border, the gradual development of a common living and economic area, as well as the strengthening ties with eastern Europe, the traffic volume on the streets in Berlin and the surrounding countryside has grown appreciably. According to investigations by the German Institute for Economic Research (DIW), Berlin must calculate, even over the long term, with a further increase in motorized individual traffic.
Figure 1 shows a continuously upward development in the stock of cars for both halves of the city, with the eastern part of the city in addition showing an especially steep upward trend in the first year of reunification. Even in the years 1970 – 1980, the amount of all motor vehicles registered increased by around 87 % in East Berlin, from about 139,000 to 261,000; in West Berlin, by contrast, the gain was only around 46 %, from 411,000 to 661,000. Here, the increased motorization of the population had already begun in the ’60s, so that the further increase was slighter during the following years. Between 1980 and 1995, the motor vehicle stock increased in the eastern part of the city by some 59 %, in the western part, during the same period, by around 45 %. Thus, the number of motor vehicles in East Berlin tripled to 415,000 (plus 197 %) over a period of 25 years, while in West Berlin, for the reasons stated, it still doubled to 873,000 (plus 112 %).