CN109615178A - A kind of method that Public Transport Transfer track changes to the route shift adjustment of bus trip again - Google Patents
A kind of method that Public Transport Transfer track changes to the route shift adjustment of bus trip again Download PDFInfo
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- CN109615178A CN109615178A CN201811364696.0A CN201811364696A CN109615178A CN 109615178 A CN109615178 A CN 109615178A CN 201811364696 A CN201811364696 A CN 201811364696A CN 109615178 A CN109615178 A CN 109615178A
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Abstract
The method that the Public Transport Transfer track that the present invention designs changes to the route shift adjustment of bus trip again, analyze the starting point gone on a journey in the period of working day (or nonworkdays) route and destination, wherein Public Transport Transfer track changes to bus trip again for analysis, if such passenger flow accounts for 80% or more of the route passenger flow, average trip distance is less than 15km, considers from opening straightforward line between origin-to-destination;If such passenger flow accounts for 80% or more of the route passenger flow, average trip distance is greater than 15km, and period vehicle load factor > 120%, then merges the small passenger flow website of the route and transfer route;Such passenger flow accounts for the 80% of the route passenger flow hereinafter, then other situations is combined to be adjusted.
Description
Technical field
The invention belongs to the route classes that bus trip is changed in public transport field more particularly to a kind of Public Transport Transfer track again
The method of secondary adjustment.
Background technique
Public transport company adjusts public bus network rule of thumb to repetition circuit (public transport and subway are overlapped section) analysis at present,
Effect is not satisfactory, and the skill for going out repetition circuit client's trip characteristics by big data analysis has been given in the development of current computer technology
Art is directed toward, to provide the removal the smallest scheme of redundancy public bus network negative effect, is plugged into passenger in conjunction with individual trip law-analysing
Practical OD point, analyze working day (or nonworkdays) route a period in go on a journey starting point and destination, point
Public transport is through, public transport and Public Transport Transfer, public transport and track transfer are through, Public Transport Transfer track changes to these four situations of public transport again,
And it is made adjustment the decision of route shift according to different concrete conditions.
Summary of the invention
The present invention is intended to provide a kind of method that Public Transport Transfer track changes to the route shift adjustment of bus trip again.For reality
Existing above-mentioned technical purpose, the present invention use following technical scheme, and a kind of Public Transport Transfer track changes to the route class of bus trip again
The method of secondary adjustment analyzes the starting point gone on a journey in the period of working day (or nonworkdays) route and destination,
Wherein Public Transport Transfer track changes to bus trip again for analysis, comprising the following steps:
Step S1, the record of public transport is changed to again by Public Transport Transfer track, number of transfer is 2 and its above;
Step S2, such volume of the flow of passengers is calculated;
If step S3, such passenger flow accounts for 80% or more of the route passenger flow, average trip distance is less than 15km, considers from
Point is to opening straightforward line between terminal;
Step S4, it is directed to OD pairs of peak period super large, the routes such as major station cable release, special line, local train can be opened, but needs to keep away
Open traffic capacity bottleneck road;Extract the corresponding website of getting on the bus of super large OD amount, get-off stop, shortest distance connection route, meter
Calculate the traffic capacity in each section, public transport vehicle flowrate on connection route;
Step S5, it when the min traffic capacity≤max public transport vehicle flowrate, needs to be replaced with the section for being greater than the min traffic capacity
Min traffic capacity section is changed, it, can be using the small passenger flow website of merging if the section that can not replace, not can increase special line
Strategy;
Step S6, when the min traffic capacity > max public transport vehicle flowrate, special line and its shift is added, recalculates bus
Flow compares the traffic capacity and public transport vehicle flowrate again, when the min traffic capacity > max public transport vehicle flowrate, can take special line
And shift;If the min traffic capacity≤max public transport vehicle flowrate, shift is adjusted, until the min traffic capacity >=max public transport wagon flow
Amount takes final special line trend and shift;
If step S7, such passenger flow accounts for 80% or more of the route passenger flow, and average trip distance is greater than 15km, and this when
Section vehicle load factor > 120% then merges the small passenger flow website of the route and transfer route;
Step S8, such passenger flow accounts for the 80% of the route passenger flow hereinafter, then other situations is combined to be adjusted.
Preferably, a possibility that step S8 is adjusted by way of frequency increase, for needing frequency increase
Route, calculate its Bus transit capacity through road, if the traffic capacity meet, frequency increase;If the traffic capacity is unsatisfactory for,
It then needs to take other measures;Obtain the bus stop traffic capacity C that the route is passed throughIt stands, unit :/h;Calculate each public transport
The flow of All other routes on station, public transport vehicle flowrate BIt stands=sum (All other routes shift), unit :/h;Then the route is logical
Row ability CLine=min (CIt stands-BIt stands), unit :/h;From public transport shift statistical form, the shift number of the route, the public affairs of the route are obtained
Hand over vehicle flowrate BLine=route shift number;If BLine<CLine, export CLine;Otherwise it cannot increase departure frequency.
The method that the Public Transport Transfer track that the present invention designs changes to the route shift adjustment of bus trip again, analyzes working day
The starting point gone on a journey in one period of (or nonworkdays) route and destination, wherein Public Transport Transfer track changes again for analysis
Multiply bus trip, if such passenger flow accounts for 80% or more of the route passenger flow, average trip distance is less than 15km, considers from starting point
To opening straightforward line between terminal;If such passenger flow accounts for 80% or more of the route passenger flow, average trip distance is greater than 15km,
And period vehicle load factor > 120% then merges the small passenger flow website of the route and transfer route;Such passenger flow accounts for this
The 80% of route passenger flow is hereinafter, then combine other situations to be adjusted.
Detailed description of the invention
Fig. 1 is the flow chart of the method for the present invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, unless otherwise specified and limited, it should be noted that term " installation ", " connected ",
" connection " shall be understood in a broad sense, for example, it may be mechanical connection or electrical connection, the connection being also possible to inside two elements can
It, can also be indirectly connected through an intermediary to be to be connected directly.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term.
The route that a kind of Public Transport Transfer track according to an embodiment of the present invention changes to bus trip again is described referring to Fig. 1
The method of shift adjustment, analyzes the starting point and purpose gone on a journey in the period of working day (or nonworkdays) route
Ground, wherein Public Transport Transfer track changes to bus trip again for analysis, comprising the following steps:
Step S1, the record of public transport is changed to again by Public Transport Transfer track, number of transfer is 2 and its above;
Step S2, such volume of the flow of passengers is calculated;
If step S3, such passenger flow accounts for 80% or more of the route passenger flow, average trip distance is less than 15km, considers from
Point is to opening straightforward line between terminal;
Step S4, it is directed to OD pairs of peak period super large, the routes such as major station cable release, special line, local train can be opened, but needs to keep away
Open traffic capacity bottleneck road;Extract the corresponding website of getting on the bus of super large OD amount, get-off stop, shortest distance connection route, meter
Calculate the traffic capacity in each section, public transport vehicle flowrate on connection route;
Step S5, it when the min traffic capacity≤max public transport vehicle flowrate, needs to be replaced with the section for being greater than the min traffic capacity
Min traffic capacity section is changed, it, can be using the small passenger flow website of merging if the section that can not replace, not can increase special line
Strategy;
Step S6, when the min traffic capacity > max public transport vehicle flowrate, special line and its shift is added, recalculates bus
Flow compares the traffic capacity and public transport vehicle flowrate again, when the min traffic capacity > max public transport vehicle flowrate, can take special line
And shift;If the min traffic capacity≤max public transport vehicle flowrate, shift is adjusted, until the min traffic capacity >=max public transport wagon flow
Amount takes final special line trend and shift;
If step S7, such passenger flow accounts for 80% or more of the route passenger flow, and average trip distance is greater than 15km, and this when
Section vehicle load factor > 120% then merges the small passenger flow website of the route and transfer route;
Step S8, such passenger flow accounts for the 80% of the route passenger flow hereinafter, then other situations is combined to be adjusted.
Preferably, a possibility that step S8 is adjusted by way of frequency increase, for needing frequency increase
Route, calculate its Bus transit capacity through road, if the traffic capacity meet, frequency increase;If the traffic capacity is unsatisfactory for,
It then needs to take other measures;Obtain the bus stop traffic capacity C that the route is passed throughIt stands, unit :/h;Calculate each public transport
The flow of All other routes on station, public transport vehicle flowrate BIt stands=sum (All other routes shift), unit :/h;Then the route is logical
Row ability CLine=min (CIt stands-BIt stands), unit :/h;From public transport shift statistical form, the shift number of the route, the public affairs of the route are obtained
Hand over vehicle flowrate BLine=route shift number;If BLine<CLine, export CLine;Otherwise it cannot increase departure frequency.
The method that the Public Transport Transfer track that the present invention designs changes to the route shift adjustment of bus trip again, analyzes working day
The starting point gone on a journey in one period of (or nonworkdays) route and destination, wherein Public Transport Transfer track changes again for analysis
Multiply bus trip, if such passenger flow accounts for 80% or more of the route passenger flow, average trip distance is less than 15km, considers from starting point
To opening straightforward line between terminal;If such passenger flow accounts for 80% or more of the route passenger flow, average trip distance is greater than 15km,
And period vehicle load factor > 120% then merges the small passenger flow website of the route and transfer route;Such passenger flow accounts for this
The 80% of route passenger flow is hereinafter, then combine other situations to be adjusted.
In the description of this specification, the description meaning of reference term " one embodiment ", " example " or " some examples " etc.
Refer to that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the invention
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or show
Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples
It can be combined in any suitable manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (2)
1. a kind of method that Public Transport Transfer track changes to the route shift adjustment of bus trip again, analysis working day (or inoperative
Day) starting point gone on a journey in period of route and destination, wherein Public Transport Transfer track is changed to public transport again and is gone out for analysis
Capable, which comprises the following steps:
Step S1, the record of public transport is changed to again by Public Transport Transfer track, number of transfer is 2 and its above;
Step S2, such volume of the flow of passengers is calculated;
If step S3, such passenger flow accounts for 80% or more of the route passenger flow, and average trip distance is less than 15km, consider from starting point to
Straightforward line is opened between terminal;
Step S4, it is directed to OD pairs of peak period super large, the routes such as major station cable release, special line, local train can be opened, but needs to avoid leading to
Row ability bottleneck road;The corresponding website of getting on the bus of super large OD amount, get-off stop are extracted, shortest distance connection route calculates connection
The traffic capacity in each section, public transport vehicle flowrate on logical route;
Step S5, it when the min traffic capacity≤max public transport vehicle flowrate, needs with the section replacement min greater than the min traffic capacity
It traffic capacity section can be using the plan for merging small passenger flow website if the section that can not replace, not can increase special line
Slightly;
Step S6, when the min traffic capacity > max public transport vehicle flowrate, special line and its shift is added, recalculates public transport vehicle flowrate,
Compare the traffic capacity and public transport vehicle flowrate again, when the min traffic capacity > max public transport vehicle flowrate, special line and class can be taken
It is secondary;If the min traffic capacity≤max public transport vehicle flowrate, adjustment shift is adopted until the min traffic capacity >=max public transport vehicle flowrate
Take final special line trend and shift;
If step S7, such passenger flow accounts for 80% or more of the route passenger flow, average trip distance is greater than 15km, and the period vehicle
Load factor > 120% then by the route and is changed to the small passenger flow website of route and is merged;
Step S8, such passenger flow accounts for the 80% of the route passenger flow hereinafter, then other situations is combined to be adjusted.
2. the method according to claim 1, wherein step S8 be adjusted by way of frequency increase can
Can property calculate its Bus transit capacity of the institute through road for needing the route of frequency increase, if traffic capacity satisfaction, increases
Overtime work time;If the traffic capacity is unsatisfactory for, need to take other measures;Obtain the bus stop traffic capacity that the route is passed through
CIt stands, unit :/h;Calculate the flow of All other routes on each bus stop, public transport vehicle flowrate BIt stands(classes of All other routes of=sum
It is secondary), unit :/h;The then traffic capacity C of the routeLine=min (CIt stands-BIt stands), unit :/h;From public transport shift statistical form, obtain
Take the shift number of the route, the public transport vehicle flowrate B of the routeLine=route shift number;If BLine<CLine, export CLine;Otherwise cannot
Increase departure frequency.
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CN201811364696.0A CN109615178B (en) | 2018-11-16 | 2018-11-16 | Method for adjusting line shifts of bus transfer track transfer bus trip |
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CN201811364696.0A CN109615178B (en) | 2018-11-16 | 2018-11-16 | Method for adjusting line shifts of bus transfer track transfer bus trip |
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Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101630440A (en) * | 2009-06-01 | 2010-01-20 | 北京交通大学 | Operation coordination optimizing method of common public transit connecting with urban rail transit and system thereof |
KR20110131872A (en) * | 2010-06-01 | 2011-12-07 | 박태진 | Method and control system of reducing vacant rate on the public transportation |
CN106097226A (en) * | 2016-06-20 | 2016-11-09 | 华南理工大学 | City Routine Transit Network Design method based on Hierarchical Programming |
CN106448233A (en) * | 2016-08-19 | 2017-02-22 | 大连理工大学 | Big data based bus route time table collaborative optimization method |
CN106504518A (en) * | 2016-11-24 | 2017-03-15 | 浙江交通职业技术学院 | The dispatching method that a kind of city bus are cooperateed with long-distance passenger transportation |
CN106530680A (en) * | 2016-12-02 | 2017-03-22 | 东南大学 | Combined service method of bus routes based on express buses |
CN106651034A (en) * | 2016-12-23 | 2017-05-10 | 中山大学 | Public traffic line network planning method |
CN106652434A (en) * | 2016-12-02 | 2017-05-10 | 东南大学 | Bus dispatching method based on rail transit coordination |
-
2018
- 2018-11-16 CN CN201811364696.0A patent/CN109615178B/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101630440A (en) * | 2009-06-01 | 2010-01-20 | 北京交通大学 | Operation coordination optimizing method of common public transit connecting with urban rail transit and system thereof |
KR20110131872A (en) * | 2010-06-01 | 2011-12-07 | 박태진 | Method and control system of reducing vacant rate on the public transportation |
CN106097226A (en) * | 2016-06-20 | 2016-11-09 | 华南理工大学 | City Routine Transit Network Design method based on Hierarchical Programming |
CN106448233A (en) * | 2016-08-19 | 2017-02-22 | 大连理工大学 | Big data based bus route time table collaborative optimization method |
CN106504518A (en) * | 2016-11-24 | 2017-03-15 | 浙江交通职业技术学院 | The dispatching method that a kind of city bus are cooperateed with long-distance passenger transportation |
CN106530680A (en) * | 2016-12-02 | 2017-03-22 | 东南大学 | Combined service method of bus routes based on express buses |
CN106652434A (en) * | 2016-12-02 | 2017-05-10 | 东南大学 | Bus dispatching method based on rail transit coordination |
CN106651034A (en) * | 2016-12-23 | 2017-05-10 | 中山大学 | Public traffic line network planning method |
Non-Patent Citations (6)
Title |
---|
况丽娟;: "城市轨道交通环线规划及案例分析", 地下工程与隧道, no. 02 * |
毛志宏, 牛惠民: "城市公交系统结构合理性的研究", 兰州交通大学学报, no. 01 * |
王佳冬;袁振洲;: "考虑乘客出行习惯的公交线网优化方法", 交通信息与安全, no. 04 * |
陆原;曾滢;郭晟;: "快速公交系统模式研究――以广州市BRT试验线系统为例", 城市交通, no. 05 * |
鲁寒宇;陈玲娟;张兆钦;许凯;: "轨道交通沿线常规公交线路优化方法", 物流技术, no. 01 * |
黄练;唐小淋;林钰龙;詹承志;: "基于一卡通数据的公交客流时空特征分析――以深圳为例", 中国高新技术企业, no. 17 * |
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