Journal of Jilin University(Engineering and Technology Edition) ›› 2024, Vol. 54 ›› Issue (3): 692-699.doi: 10.13229/j.cnki.jdxbgxb.20220606

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Identification method of potential public transportation lane demand based on bus line operation stability

Jiao-rong WU1,2(),Qing-kai LIN1,Yong-qi DENG1   

  1. 1.Key Laboratory of the Ministry of Road and Transportation Engineering，Tongji University，Shanghai 201804，China
    2.Urban Mobility Institution，Tongji University，Shanghai 201804，China
  • Received:2022-05-19 Online:2024-03-01 Published:2024-04-18

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Abstract:

Combing the existing public transportation lane design specifications around the world， it is concluded that the setting of bus lanes usually considers the peak hour road bus passenger volume of section， bus traffic volume of sections， road conditions and other objective indicators， with little consideration given to the operational stability of bus routes on the road and its influence of improving passengers' experience of bus service reliability. In the post-operation evaluation of the public transportation lanes， operational reliability and efficiency assessment are finished regularly. Due to the lack of conditions for setting up dedicated bus lanes， some dedicated bus lanes have poor operational effects and no improvement in passenger experience. Therefore， considering passenger experience， a potential public transportation lane demand identification method based on the stability of bus operation was proposed. Based on the actual road conditions and bus vehicle GPS data， the deviation of bus vehicles from the planned schedule on each road section or station was analyzed， and two indicators， namely the bus congestion index and bus delivery time volatility were constructed， to form a classification method based on bus operation stability of road sections or stations. The proposed method was applied to the roads of 69 bus routes in central Shanghai， and the identified roads with poor bus operation stability were considered as potential needs for public transportation lanes. The method can also target public transportation lanes that need further optimization and improvement.

Key words: urban traffic, bus transportation, operational stability, road classification method, bus lanes

CLC Number: 

  • U491.1

Table 1

Setting standards of bus lanes in various urban sections"

城市考虑因素
北京［3］车道数、高峰断面公交客流量、高峰断面公交车流量、道路等级、公交运送速度、公交客流比重、公交运送速度
上海［2］、江苏［4］车道数、实际及预测3年内高峰断面公交客流量、实际及预测3年内高峰断面公交车流量、高峰小时系数
深圳［5］车道数、高峰断面公交客流量、高峰断面公交车流量、路段单向交通饱和度
宁波［6］车道数、高峰断面公交客流量、高峰断面公交车流量、公交客流比重
佛山［7］车道数、高峰断面公交客流量、高峰断面公交车流量
全国其他大部分中小城市［8］3车道道路高峰时段公交客运量大于4000 人/h，且公交车流量大于100 puc/h；单向2车道道路高峰时段公交客运量大于6000 人/h，且公交车流量大于150 puc/h

Fig.1

Schematic diagram of No.538 upstream， roaddivision， station section"

Fig.2

Schematic diagram of Wujiaochang （Songhu road） - Songhu road Zhengli roadstation section - duplicate line"

Fig.3

Schematic diagram of 69 full-day lines"

Fig.4

Time varying diagram of turnaround time for No.538"

Fig.5

Grading scatter plot of two indicators"

Table 2

Grading standards for road sections of bus lines belonging to each station section"

分级公交拥堵指数

公交运行时间

波动性

A（畅通）x<1.70y<2.80
B（运行时间过大）1.70≤x<2.00y<4.3184x-4.5418
C（运行时间波动性过大）y≥4.3184x-4.54182.80≤y<4.10
Dx≥2.00y≥4.10
Dx≥2.00y≥4.10

Table 3

Results of station sections and road mileage division of each grade in morning and evening peak hour"

分级早高峰站段数早高峰路段 里程/km晚高峰站段数晚高峰路段 里程/km
A917278999317
B、C376193300190
D1122065970

Fig.6

Bus operation stability road classification map"

Fig.7

Potential demand for bus lane setting in Yangpu district"

Fig.8

Songhu road （Yinxing road - Wujiaochang）section morning peak classification map"

Table 4

Bus operation stability classification of bus-only road sections"

分级早高峰晚高峰
A48 km，占比64.8%68 km，占比70.4%
B、C24 km，占比32.7%22 km，占比22.1%
D25 km，占比31.5%7 km，占比7.5%

Fig.9

Shanghai central city part of the area has been built bus lane operational stability rating"

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