Street Management - the Pedestrianization of a Main Street in the Central Area of Belgrade
S Vukanovic, B Stanic, University of Belgrade; Z Rubinjoni, City of Belgrade, YU
In the last twenty years all cities throughout the world have faced a continual increase in traffic demand. Neither a simple increase in physical capacities of the traffic network nor an introduction of new traffic control systems or similar isolated actions can be the right answer to the increased traffic demands. New approaches to traffic management and application of complex new technology solutions in traffic control are called for.
Besides improving safety for all participants, their main purpose is to increase the capacity of the existing infrastructure so that it is exploited efficiently and in accordance with the current traffic demand.
It is clear that to achieve traffic flow one should consider:
* traffic conditions (to reduce duration and scope of traffic jams, to increase capacity and level of safety),
* physical surroundings (less noise and less pollution) * economic conditions (efficient usage of time, energy, space and other resources).
Management of traffic means the possibility to choose an adequate management algorithm and the possibility to adapt it to constant changes in traffic demand. The basic aims of management algorithms such as a safety level, capacity, travel time and others, can easily be defined, but it is not always simple, in local conditions, to define their values. Changes in the scope and character of traffic demand in towns create the need for constant re-examination and adaptation of the current management strategies, as well as correction of aims in order to prevent possible unfavorable traffic situations. In addition, certain strategies have a larger impact in one traffic condition than in another.
Conflict between strategies is common and demands adoption of a hierarchy of individual strategies in time and space. Belgrade, a city with cca 1,600,000 inhabitants, after years of modest or almost without any investment at all into transportation system, has initiated activities (in last two years) quickly to overcome these shortcomings.
Conflicts between various strategies are very much present, and sometimes, at a given moment, difficult to overcome. In 2001 and at the beginning of 2002, city authorities, after detailed analysis, decided to adapt one of the main streets in the city center maximally for pedestrian traffic. Entire reconstruction was finished in six months. After opening this street for traffic, considerable positive indicators have been recognized, such as increased level of pedestrian flow services, smaller level of pollution (elimination of buses from the street, only trolleybuses are in use), smaller number of accidents, etc.
Association for European Transport