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Prospects of urban elevated road


8.7 kilometers, there are intersections l2 disk b, channel two, alley than 20. Three of Hill Street, Xin Jie Kou, Zhujiang Road, Drum Tower, the city's transportation hub and other intersections are almost all east-west roads are subject to the impact noon, the formation of east and west traffic flow interfere with each other many experts have pointed out that traffic congestion in Nanjing section is not the main reason, and in the intersection, and the intersection of this line and most of Pat does not have to establish the conditions for delivery 3. Difficulties in demolition and renovation of the ground along the city are densely populated dry meet unexpectedly, many of the numerous downtown buildings, demolition and renovation is costly (estimated at 4,000 per km will cost more than if 500O million), but also solve the problem of the intersection, the other relying on east, two north-south roads west of the idea of ​​segregation has been demonstrated can not be established (due to the different nature of the main city roads to passenger transport. something one thousand to the main transit cargo). The best solution is to be built near the main line double track one by one to open up a parallel north-south route to the vice. ●. Road work around what other method to solve the vehicle to ask the first evil thought this line even if the subway or light rail will put into operation, can replace the number of motor vehicles will also be very limited (can replace part of the bus, other vehicles more difficult to replace), a large number of vehicles still on the ground to solve the above considerations. Some explanations more suitable for Taiwan,[link widoczny dla zalogowanych], the construction of this line fast one thousand high-lance, in particular, this route is traffic aorta in Nanjing, with a wall of all training, a pass through all the special status, elevated or ground away by the great difference. (Elevated to cross all the intersections, and the ground not only not solve the intersection problem of double-track will also add new intersection). This way if the construction of elevated roads in the form of its implementation can avoid the original route towards the main road, roads in the planning of the vice (Dan Fengjie Hongwu Road, eleven line) on the construction, the specific route in one of five within the bridge of your Dan Fengjie Hongwu Road, a one of a Gaolou Men Xuanwumen a central door, both to avoid the downtown business district actually on the landscape, environment, green, pipelines and other effects, but also solve the city's Commercial Street and the existing function can not distinguish the problem of traffic corridors. Across the board from five to your door in a central, cross the Zhonghua Gate Station railway station, 9.7 km length, ramp and bus stations, each with 5-6 pairs, to three lanes total, with a total investment estimated at 380 million yuan, the average cost per kilometer, about 3 more than ten million yuan, lower than the cost of ground to build complex preserves (about 4-5 million yuan, km). Said from the transport function, regardless of speed or volume, have increased 2-3 times than above ground road; can be all across the intersection, the intersection to ease the ground, while also providing additional high-lance road under a road and a large number of parking spaces. From the economic point of view, only increases the speed (China Gate a central door elevated only lO-l5 minutes, and ground traffic to be 30 - 50 minutes) to save Taiwan class A, class year, can save costs 3 more than ten million units Yuan, save gasoline 5 thousand tons, the contrary is not established if this elevated, then, the city lost considerable traffic each year. If this elevated expressway built vehicles will benefit the city, which can take a one-time charges and the right to sell advertising and other fund raising methods, coupled with the road can be phased Plaza construction, sub-benefit funds will not have much issues, such as the ground after completion of construction of the elevated double-track, the full range of investment will be in the 2 billion or less. In addition the east, west corridors in the future can be built quickly dry meet unexpectedly, if required, they can use the form elevated, but not necessarily across the board elevated, not very large in the case of intersection density, using part of the elevated roads can be built with the ground quickly Road. High-lance as a local application of the road in Nanjing, consider crossing the bridge one by one, Siping Road Bridge Plaza Yancang this section (the existing road width 36 meters), just take out card in the South down the throat Yangtze River Bridge, Nanjing, Peking University is doors, can not adapt to the current intersection and the north-south road transport needs are often blocked, and the roads had been formed on both sides of the building, the demolition can not expand, just apply in this case from the Changjiang bridge across the Viaduct Siping Road to the Bridge Plaza Yancang floor (I km length), connected to the west of the city roads, the northern gate of the traffic to flow, the investment is not much. Application options mentioned above are preliminary ideas Viaduct, the concrete implementation through the feasibility study needed. Conversely, if you do not consider the use of three-dimensional space on the ground only to make an issue of traffic, then even if the current transportation planning program in Nanjing to the full realization of this century, the Nanjing city traffic conditions (especially the main road) is not only not improve, will continue to deteriorate , and then the potential of the road surface, it will do little to dig, so the ancient words: (Author: Nanjing Municipal Design Institute) -37 *