|Ph.D Student||Ghanayim Muhammad|
|Subject||Integrated Planning of Road and Bicycle Network|
|Department||Department of Civil and Environmental Engineering||Supervisor||Professor Shlomo Bekhor|
|Full Thesis text - in Hebrew|
This study aims to plan a network of bicycle paths, while taking into consideration bicycle traveling habits and existing constraints.
This research develops a mathematical model for the purpose of planning a network of bicycle routes within the urban space. In order to achieve this goal, a broad understanding of bicycle traveling habits is required. To this end, models for the selection of bicycle traveling routes have been developed, serving as a basis for examining the quality of the suggested network. The model takes into account the level of security, the standard of service for bicycle riders, traveling distances, land utilization and network connectivity.
The study is composed of three main stages. The first stage involved the development of a model designed to choose a bicycle traveling route. The second step involved the formulation of an optimization model for building a network of bicycle routes. The third phase comprised the formulation of a network of bicycle routes.
In order to develop a route choice model, a traveling habit survey was conducted in 2014 in 14 cities within the greater area of Tel Aviv, gathering data from 2,900 families with GPS devices. About 600 observations out of approximately 30,000 trips included bicycles, and 545 of them were used to calibrate the models. To the best of our knowledge, this is the first attempt to use data based on a traveling habit survey for the purpose of planning a network of bicycle routes.
This study also proposes a new integrative method to generate a set of routes designed specifically for bicycles, in order to increase the coverage. The proposed method generates routes according to the utility function based on a limited number of observations from the survey. The new set of routes is then used for the final calibration of the models.
Alongside the proposed method to generate the set, this study suggests a new method for selecting the observed route from the generated set (the closest route to the real route). While prior studies have only addressed congruence according to the length, in this study we also use a new method which takes into account all the characteristics of the observed route and the generated routes.
The problem associated with planning a network has been studied extensively in literature, but focused on planning roadways. Few models designed for planning a network of bicycle paths have been found, which addressed multiple quantitative measures, such as stress level in roadways, network connectivity, and preferred destinations. Therefore, the main contribution of this study is the formulation of an appropriate mathematical model and solving the problem of planning a network of bicycle paths.
An important aspect which has been pointed out in scientific literature is that most of the studies examining a network of bicycle paths have addressed an existing network as opposed to planning a new one. This study could be highly potential for implementation in existing municipal networks as well as for planning new cities and zones, by integrating road and bicycle networks during the planning process.