Taking Wuhan urban rapid rail transit network planning as an example, this paper analyzes and summarizes some methods and characteristics in the planning research process, so as to explore scientific ideas for rapid rail transit network planning suitable for China's national conditions. The scale of rail transit network will be 130 km in 2020 and 2 15 km in the future. The scale of urban rail network is 325 kilometers. The planning scheme of Wuhan urban rail transit network consists of 7 roads with a total length of 2 15 km, with 178 stations, 3 vehicle maintenance bases and 10 parking lots. Plan five large-scale passenger transport hubs, arrange three lines across the Yangtze River (four passages are reserved) and arrange two lines across the Han River.

Wuhan, rail transit, network planning

Connecting with the planning of Wuhan rapid rail transit network, this paper analyzes and summarizes some methods for studying its planning process and characteristics, with a view to exploring the scientific thinking of rapid rail transit network planning suitable for China's national conditions. The scale of rail transit network will be 130 km in 2020, and the prospect will be 2 15 km. 325 kilometers of urban rail network. The planning scheme of Wuhan urban rail transit network consists of 7 roads with a total length of 2 15 km, with 178 stations, 3 vehicle maintenance bases and 10 parking lots. Five passenger transport hubs are planned, with 3 lines across the Yangtze River (4 channels are reserved) and 2 lines across the Han River.

Keywords: Wuhan, rail transit, network planning

Planning characteristics of 1 network

(1) The network layout coincides with the eight major development directions of three towns in Wuhan.

Wuhan's overall urban planning continues the urban pattern of balanced development of three towns on both sides of the Yangtze River. Due to the natural barrier of lakes and mountains, Hankou, Hanyang and Wuchang have formed a clear main direction of urban development. See figure 2.

As can be seen from Figure 2, the main development directions of the three towns in Wuhan are:

Hankou area-direction of Wujiashan and Gutian along Jiefang Avenue; Dike angle and trend of the lake behind Jiefang Avenue; Go north along Evergreen Road, heading for Evergreen Garden and Tianhe Airport.

Hanyang area-along the direction of Caidian to the west of Hansha Highway; Along the 3 18 national highway, the direction of Sixin and Dunkou is south.

Wuchang area-East Lake and Guanshan along Luo Yu Road; The direction of Qingling and Baisha to the south of Xian Wu Highway; Go north along Heping Avenue towards Qingshan.

Among the eight major development axes of the above-mentioned cities, the most important economic growth points and the most promising new urban districts and cities in Wuhan are concentrated. According to statistical analysis, by 2020, the number of population and jobs distributed along the axis of urban development will account for 80% of the total number of major plans. Based on the study of this kind of pattern of city layout, the planning scheme is closely combined with the urban land layout, and its network layout covers all eight development axes.

(2) The line direction is consistent with the main flow direction of urban passenger flow.

The analysis of the main flow direction of future passenger flow is mainly based on passenger flow forecast. Based on the urban comprehensive traffic survey data of 1998 ~ 1999, the passenger traffic forecast model of Wuhan is established by using Canadian traffic planning software. Through passenger flow forecast and analysis, we can grasp the passenger flow demand and spatial distribution pattern of urban public transport in the future. By studying the main flow direction of passenger flow, the rail transit corridor is determined.

(3) The network scale is consistent with the reasonable scale of overall control.

According to the traffic demand and network coverage, the reasonable network scale is calculated by analogy with some basic parameters of related big cities at home and abroad and combining with the characteristics of Wuhan's vast territory. Through the research on the reasonable scale of the network, the control index of the reasonable scale of Wuhan rail transit network is mastered. The control indicators for each forecast year are as follows:

The prospective scale of the network is 200 ~ 220km in 20 10, 50 ~ 60km in 2020 and 0/00 ~130km in 2020. The scale of urban rail transit network (2 256 km2) is about 300 km. The overall scale of the planned network is 2 15km, and it will be 5 1.3km in 2065 and 438+030 km in 2020. The scale of urban rail network is 325 kilometers. It can be seen that the network scale of the planning scheme is within a reasonable scale.

(4) The network layout can meet the demand of cross-river passenger flow, and the balanced development of urban pattern on both sides of the Yangtze River leads to cross-river traffic becoming the primary problem of urban traffic.

At present, the total passenger traffic of the Yangtze River is about 600,000 passengers/day, all of which are borne by conventional public transport, and there are 72 cross-river bus lines. In solving the future cross-river traffic trip, we should give priority to the development of rail transit, gradually increase the proportion of cross-river passenger transport undertaken by rail transit, and reduce the long-distance cross-river travel by conventional buses.

The main problems to be solved in the special study of river crossing are: how many passengers cross the river in different periods, how many river crossing passages are needed to meet the needs, where the river crossing passages are most reasonable, and how to choose them during construction.

According to the forecast of river-crossing traffic demand in the future, combined with the capacity of rail transit and conventional public transport, 3 ~ 4 subway river-crossing passages should be set up in the future year. According to the analysis of the spatial distribution of passenger flow across the river, the urban centers of the first and second bridges of the Yangtze River should give priority to the rail crossing channel, reduce detours and facilitate residents to travel across the river. In order to meet the needs of the above-mentioned river-crossing traffic, three river-crossing passages (four are control passages) are arranged in the planning scheme. The first river-crossing channel, namely Track 2, is located between the first bridge and the second bridge of the Yangtze River.

(5) The network has a good connection with the large-scale passenger distribution hub.

Rail transit lines must contact large-scale urban transportation hubs and passenger distribution points, and form a large-scale passenger hub with convenient transfer and strong radiation through rail transit and conventional public transport, which is of great significance for stabilizing the structure of rail transit network, quickly and conveniently diverting passengers and facilitating residents to transfer.

Through analysis, it is considered that the main passenger hubs to be considered in rail transit network planning are Hankou Railway Station, Wuchang Railway Station, Hankou Commercial Center, Hongshan Square in Wuchang and Hanyang Shilipu. In the planning scheme, these large transportation hubs are connected by 2 ~ 3 rail lines.

(6) The network promotes the development of new urban areas and cities.

According to the strategic requirements of Wuhan's social and economic development, Wuhan's overall urban planning puts forward the idea of urban development, creating new living and development space for the city, driving the development of surrounding areas and forming a reasonable urban structure system. In the planning, as the population of the main urban area tends to be saturated, the new urban area will be vigorously developed. Form an urban-rural fringe with the main city as the core, the new city as the pillar, the compact development of the main city, the different scale of the new city and convenient transportation. The construction of urban rail network must consider the travel demand between the main city and the new city. Through the study of the urban area, the scale and trend of the extension of the main city line to the periphery are determined.

In the planning scheme, the peripheral end of each rail line is conveniently connected with the new urban area, and rail transit lines pass through the key urban development new areas. Therefore, the construction of rail transit will greatly promote the development of new urban areas and new cities.

(7) Fully consider the utilization of national railway resources.

China Railway has long been involved in urban transportation abroad, such as the Yamanote Ring Road in Tokyo, the outer ring of Musashino Line within 50 kilometers (more than 70 kilometers) of Tokyo, and the central trunk line across Tokyo. These lines are hundreds of kilometers long and serve urban traffic.

Wuhan is the central city in the hinterland of Central China, with railways extending in all directions. At present, the operating mileage of railways within the jurisdiction reaches 1 078 km, and the density of railway network in the main urban area is 3. 8 km/km2. With the development of urban railway and urban comprehensive traffic, railway traffic is increasingly rich. Urban rail transit should make full use of this existing resource. Based on the special study of China Railway, the planning scheme makes a preliminary planning assumption on the utilization of existing resources. It is assumed that the existing railway in the main urban area of Wuhan may open 5-6 suburban passenger lines, the length of which is about 140 ~ 170 km.

(8) Hierarchical layout and qualitative analysis of the network.

The planning scheme is divided into three levels: inter-town skeleton line, intra-town main line and network auxiliary line. See figure 1.

(1) Inter-town trunk line

The inter-town skeleton line (with a total length of about 90 km) consisting of lines 2, 3 and 4 connects the two rivers and four banks, crosses the two rivers and connects the three towns. The skeleton lines intersect in pairs, and the three-line buckle not only connects the external transportation hubs such as Hankou Railway Station, Wuchang Railway Station and Beijing-Guangzhou Railway High-speed Passenger Transport Center, but also connects the central areas of Hankou, Wuchang and Hanyang, as well as the Hankou Expo Center and the back of Hankou. These three lines focus on solving the problems of cross-river traffic and long-distance traffic, and strengthen the connection between the three towns.

(2) Main routes in the town

The 1 line and Line 5 form two railway trunk lines (about 65 km long) south of the Yangtze River and north of the Yangtze River, which run through Hankou and Wuchang respectively. The two trunk lines are arranged along the main direction of passenger flow in the town, passing through the inter-town skeleton ring of rail transit, fully meeting the demand of passenger flow in the town, providing convenient transfer for inter-town passenger flow and reducing the passenger pressure of trunk lines.

The above-mentioned inter-town skeleton and the main line in the town form "three lines connecting three towns, and towns are connected;" Two lines run through the two sides of the strait to support development. "The main body of the rail transit network. The main network lines evacuate the old city, radiate the new area, extend in all directions, drive the urban construction of three towns and eight main development directions in Wuhan, and provide convenient and accessible transportation services.

(3) Network auxiliary line

Track Line 6 and Line 7 constitute the auxiliary lines of the network (with a total length of about 60 kilometers). Line 6 connects Hankou, Hanyang Old Town and Houhu New District, and increases the passage through the Han River. Line 7 connects the northern part of Hankou and the southeastern part of Wuchang, adding a passage across the Yangtze River. The two auxiliary lines expand the coverage of the rail transit network and help to improve the service level of the whole network.

2 Planning scheme evaluation

20021October 29 ~ 30, 10, Wuhan urban rapid rail transit network planning review meeting was held in Wuhan. The expert group believes that the overall scale of the planning network is reasonable, and the structural form conforms to the urban form and land use layout of Wuhan; The network scheme is organically integrated into the overall urban planning; The network scheme has good feasibility; Network evaluation reflects the characteristics of Wuhan city; The networking scheme has played a good role; The planning technical route is correct, and its overall forecast runs through the whole process of network planning, which has high credibility for optimizing the planning results of rail transit network.

Take the exam and contribute.

1 Wuhan Urban Planning Administration. Wuhan Urban Master Plan (1996 ~ 2020)

2 Lu Huapu. Research and practice of urban rail transit planning. Beijing: China Water Resources and Hydropower Press, 200 1

3 yi sirong. Multi-objective comprehensive evaluation of subway network planning. Urban Rail Transit Research, 2002, (2) :3 1.

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