Pune, India, has been working to develop an extensive cycle network for a number of years. In many NMV dependent cities, bicycle networks can best be preserved by keeping cars and motorcycles out of many existing streets in neighborhoods. Such districts are increasingly common in many affluent cities in Europe and Japan. In some cities, extensive alley systems offer opportunities for creating NMV networks while improving traffic management, as in a World Bank project in Shanghai. The safety and congestion problems associated with automobiles and pedal-powered modes have much in common when comparing situations where one or the other of these has clear local dominance in traffic.
Different problems occur when there is a more even mixture of automobiles and non-motorized traffic.
In the developed world, the response to automobile-induced traffic congestion has been to control the pace and pattern of land development, to institute better traffic management, and to program additional infrastructure and transit services. In cities where bicycle traffic congestion is a major problem, similar approaches should be considered. However, especially where NMV lanes are not well defined by physical separation, extensive mixing of NMV and MV traffic often fosters poor traffic discipline among all modes, which exacerbates traffic congestion and safety problems. A network of such roads is being created in the CBD of Shen Zhen City. Semi-Independent Bicycle Roads , positioned on one or two sides of motor vehicle lanes with physical separation.