Develop PRT personal rapid transit, completely bid farewell to traffic congestion

Date:2018-06-26 Views:87

Abstract :

In order to completely cure urban traffic congestion and exhaust pollution, through the analysis of the root causes of traffic congestion and exhaust pollution, the root causes of traffic jam and tail gas pollution are difficult to be solved, and the existing urban transport system is structural and systematic. Sexual issues, put forward the general idea of replacing the existing transportation system with the mass transit PRT personal rapid transit system, and also proposed a specific design scheme for the difficult and key technologies such as rapid change. The technical indicators of the mass transit PRT bus system can be achieved: it can achieve fast and direct speed between any two stations at 60 km/h, without stopping or transferring in the middle; the two-way double-track of narrow streets can pass 40,000 cars per hour, and the road passing capacity reaches the limit. Can provide unattended service 24 hours a day; and can achieve zero emissions withou tpollution. This high-speed, high-density, high-efficiency, zero-emission transportation system allows us to say goodbye to traffic congestion and exhaust pollution.

First, radical traffic congestion requires innovative thinking Traffic  congestion and exhaust pollution in big cities have intensified and have reached the point where non-governance is impossible. All major cities have invested a lot of people, property and resources, and have taken many measures to control pollution, but the results have not been satisfactory so far. The root cause is that they have not been cured.

As we all know, 1, the root cause of traffic jams is the explosive growth of private cars, exceeding the carrying capacity of urban open roads. 2, and the reason for the proliferation of private cars is that the city's large buses can no longer meet the needs of the city's affluent residents for fast transportation. 3.The root cause of low road carrying capacity is that the open road interference is too large and the utilization rate is too low. analyse as below:

The advantage of large buses is that they have a large volume of transportation, a small per capita area and high efficiency, and are naturally the preferred means of transportation for cities. However, the inherent shortcomings of large buses are also obvious: they must stop and stop at the station, which is destined to be a slow-moving vehicle. It is uncomfortable during peak hours and inconvenient to stop at night. This is a shortcoming that large vehicles cannot overcome. It has not been able to adapt to the travel needs of wealthy urban residents.

Private cars are fast, comfortable and convenient, and can be point-to-point service, making them the first choice for wealthy urban residents. However, its private attribute is destined to be unable to share, can not be scheduled, can not optimize configuration, large per capita area, low utilization rate, road resources, parking space resources waste, is

destined to be an inefficient vehicle, not suitable Large-scale development can only allow a few people to enjoy, and if the amount is too large, traffic congestion or traffic collapse will occur.

The open road on the ground has the interference of surrounding vehicles and pedestrians at any time, as well as the restriction of traffic lights at the crossing, the speed of the road cannot be improved, and the ability to pass the road cannot be improved, which is a barrier to increase the traffic flow of the city.

The existing road vehicles are all independent vehicles. The independent running vehicles must have enough braking distance in front of the driving. The longer the speed is, the longer the distance is required.(The highway has set up a large number of markers to judge the distance between the roads.) If the distance between the cars is too small, the car will slow down and cannot achieve high-density and high-speed driving. This is the contradiction between the speed of the independent running vehicle and the distance between the vehicles. This contradiction makes it impossible to greatly improve the traffic volume of the road.

The urban transportation system consisting of private cars + large buses +open roads was born in the low-density traffic era of the last century.It has been unable to meet the demand of high-density, high-speed andhigh-efficiency traffic in modern cities. Traffic jams are inevitable.

Whenit comes to governance, people often habitually think of the subway,light rail, and BRT bus lanes. These mass transit public transport tools have indeed improved traffic efficiency and solved many people's traveldifficulties, but they are still large buses. It is the stop and stop at the station, the congestion at the peak, and the stop at night. It is impossible to compete with the car. It is not attractive to the car owners and cannot replace the private car, so it is impossible to completely block the car. For example, Beijing Metro has the highest mileage in the country, but the number of motor vehicles is also the highest in the country (more than5.7 million vehicles).

Electric cars and driverless cars are the development direction of future cars, but this only changes the energy and driving system, does not reduce the absolute number of private cars, and does not help to block the car. They are driving on urban open roads and still face traffic jams.

The above analysis shows that the problem of traffic jams and exhaust pollution is a structural and systematic contradiction, not caused by a single factor. Only taking measures on one aspect cannot solve the problem. The reason for the poor effect of the current blocking is that it does not shake the status of the private car, and does not touch the entire old

transportation system. We must go out of our mindset, emancipate our minds, and find new ways. We must resolve to completely change the existing low-efficiency transportation system and develop a high-speed and high-density

transportation system. The predicament of urban transportation also indicates that a revolution in the transportation system is coming.

Second, the mass transit PRT personal rapid transit 2-1, innovative ideas and iconic features 2-1-1, innovative ideas:

The main contradiction of the old transportation system is the contradiction between private cars and open roads. This is the entry point for complete closure. The governance must begin with the replacement of private cars and the reconstruction of the road system.

2-1-2, public transportation sedan: Large buses can't compete with private cars. Only sedan-based public transport can be faster, more comfortable and more convenient than private cars, so it is possible to replace private cars.

2-1-3, road stereoscopic:

Too much open ground road interference can not improve the speed and ability of passing, can only hope for three-dimensional traffic, because the subway investment is too large to be popular, only the open-air road is replaced by overhead light rail. The empty rail can realize full closure and full interchange with less mnvestment and less floor space, making the road a highway. For example, the speed of the high-speed rail can reach 350 kilometers,which is completely unimaginable on the ground, and the car cannot compete with it.

The sedan bus + overhead light rail constitutes a new type of transportation system - the personal rapid transit system, the

international PRT system (Personal Rapid Transit), an open road designed to avoid the crowded ground, with tracks The car achieves a point-to-point quick and direct access. So far, commercial demonstration lines have been built in Morgantown, West Virginia, Heathrow Airport, London, and Suncheon International Horticultural Exposition in South Korea.