Urban transport and environment
system speeds development of urban transport infrastructure is much lower than the speed of urbanization and increasing the speed of motor vehicles. Land area of urban traffic is not enough, the road network is distributed unevenly, specifications very low roads, corridors always occupied. According to statistics, in large urban areas, the criteria for transport infrastructure is also very low, only meets about 35-40% compared to the necessities, such as Hanoi, land allocation inform about 7.8%, road density reached 3,89km / km2; Ho Chi Minh city in land area of about 7.5% of traffic, road density reached 3,88km / km2. Traffic indicators in the lower grade is also smaller than the necessary requirements. The parking area to reach 25%, but no specific plans. The main road density reached 40%, the density of regional roads, the lowest regional distribution only 20-30% compared with the requirements. Some consequences of the current state of urban transport is weak
traffic accident: traffic accidents in our country, especially in urban areas very serious, of the highest in the world group. But the index of the number of traffic accidents / 10,000 means not much higher than other countries in the region, but only the number of deaths / total number of injuries is particularly high, but the main cause is due to media dominant in urban traffic is two-wheeled vehicles.
traffic jams: traffic jams in urban areas is becoming increasingly urgent, especially in medium and large cities. Hanoi and Ho Chi Minh City are suffering severe consequences due to traffic jams caused.
Air pollution and noise: Increased motor vehicles in urban areas in recent years has increased dust pollution, emissions and noise produced by transport activities cause. Traffic congestion, city, state highways, construction activity and residential infrastructure contribute to increased pollution levels. Traffic noise pollution and affect the health of large urban population than other cities in the world. According to the research results from the increased value of the noise level 2 - 5dBA by the tube structure, adjacent, attached along the route. The irrational layout of functional areas in urban exacerbated noise pollution, especially for schools, hospitals, offices, and residential areas. Noise value exceeds the permitted norms from 1 - 15dBA.
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