The Planning and Operations of Safety Routes to School

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Project title

Code/計畫編號

MOST103-2221-E019-021-MY2

Translated Name/計畫中文名

學童上下學安全路線規劃及營運之探討

Project Coordinator/計畫主持人

Jenn-Rong Lin

Funding Organization/主管機關

National Science and Technology Council

Department/Unit

Department of Transportation Science

Website

https://www.grb.gov.tw/search/planDetail?id=8344298

Year

2014

Start date/計畫起

01-08-2014

Expected Completion/計畫迄

31-07-2015

Bugetid/研究經費

569千元

ResearchField/研究領域

交通運輸

"三十年前約有超過半數的學童步行或騎乘自行車上下學，今日步行上下學的學童日漸減少，造成越來越多的學童過胖，鼓勵學童步行上下學需要有創意之解決方案(如學童上下學安全路線及步行公車)讓學童步行上下學變的又安全又有趣。雖然全球許多城市對建置學童上下學安全路線的構想持續增加，過去研究探討學童上下學安全路線規劃及營運之文章確非常少。因此，這一個兩年期的研究計畫的目標，在於探討規劃學童上下學安全路線及步行公車路線排程時應關注之安全議題，建構考量安全議題之學童上下學安全路線規劃模式及步行公車路線排程規劃模式，發展可行之求解方法，探討求解之品質。第一年計畫的目的在建構及分析考量服務水準及使用者關注安全議題之學童上下學安全路線規劃模式。規劃模式考慮道路路網、使用者路徑選擇、步行安全性、便利性及減少的車流量等因素，因此規劃模式為双層數學規劃。第二年計畫的目的在建構及分析考量隨機旅行時間及使用者關注安全及營運議題之步行公車路線排程規劃模式。模式主要的決策變數有步行公車車隊規模，步行公車停靠路線、及公車途程規劃。因此，本研究的目標在於發展步行公車路線排程規劃模式，發展出運算負荷上可行之演算法，並探討求解之品質。""30 years ago, there are more than a half of children who are walking or bicycling to and from school. Today, fewer children are walking to school, and more children are at risk of becoming overweight than children 30 years ago. Encouraging children walking to school requires creative solutions such as safety routes to school (SRTS) program and walking school bus (WBS) program. Despite of growing interest in implementing SRTS around the world, there are relatively few studies published on the planning and operations of SRTS network. This encourages us to carry out this two-year study to address the safety and logistics issues concerned by users in the planning and operations of SRTS. The purpose of this first year project is to formulate and analyze an integration planning model for SRTS networks with considerations of service levels and user choices on safety routes. A multi-objective bi-level mathematical programming formulation of the problem is presented. The key planning decisions in the upper level programming considered are: the number and placement of crossing guards in the system, the creation of sidewalks between intersections, the selection of paths of users between home and school. The upper level planning decisions are made with concern for the system costs, user risk levels and the reduced traffic volumes of motor vehicles. The key user choices decisions in the lower level programming considered are the user choices on routes. The user choices on routes are made with concern for the user travel costs, the inconvenience level of the nearest crossing guard intersection located too far and user risk levels for walking to school. A hybrid meta-heuristic method will be developed for solving the problem. The quality of solutions to a series of test problems will be evaluated. The purpose of this second-year project is to formulate and analyze a planning model for walking school bus (WBS) routing and scheduling under stochastic travel times and operations constraints. The key planning decisions considered are: the number of WSB routes, where (which bus stop) each route should begin at, the WSB routing between bus stops and school. The objective is to minimize the total cost which is the sum of fixed costs of dispatching WSB, variable traveling costs of children walking on the routes and variable waiting cost for picking up children at bus stops. The planning decisions are made with concern for both total system cost and service levels (measured by the desired failure possibilities for not picking up children on time, a route duration exceeding the maximum allowed duration, and a bus can not arrive at school on time). Several hybrid meta-heuristic methods will be developed for solving the problem. The quality of solutions to a series of test problems will be evaluated."

Keyword(s)

學童上下學安全路線
運輸網路設計
基礎設施
步行公車
基礎設施
路線排程
隨機旅行時間
主動運輸
safety routes to school
transportation network design
infrastructure
walking school bus
routing and scheduling
stochastic travel times
active transportation

DSpace CRIS

The Planning and Operations of Safety Routes to School

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