A fuzzy logic local ramp metering control with multi-objectives genetic algorithm optimization | |
| Author | Nguyen Ha Minh |
| Call Number | AIT Thesis no.TE-07-02 |
| Subject(s) | Fuzzy logic Genetic algorithms |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Transportation Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. TE-07-02 |
| Abstract | The aim of this thesis is to propose a simple traff ic response control strategy for local on- ramp facility. The control strategy is a combinatio n of fuzzy logic control and the genetic algorithm (GA) optimization process. Fuzzy logic ba lances the conflicting objectives while GA calibrates fuzzy mode. A multi-objective GA whic h has two objectives of minimizing mainline disturbance and ramp density is used at sh ort intervals. Thus, the control is automatically adjusted to adapt with traffic condit ions. Traffic data was obtained from the Freeway Performa nce Measurement System Project of California, United States of America. A cell transm ission model was developed to simulate traffic condition over time. The control strategy i s then evaluated by comparing with a typical control strategy which is pre-timed control . From the evaluation, comparing to the chosen pre-ti med control, the adaptive control developed in this study showed various improvements : a reduction in maximum travel time (maximum -32.2% for ramp travel time), an increase in system throughput (maximum +3.99% for ramp output), and a decrease in total ti me spent in the system (-16.35% for a period of 24 hours of test date). The research conc ludes that multi-objective GA-fuzzy control can be expected to improve the productivity and level of service of the on-ramp facility. |
| Year | 2008 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. TE-07-02 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Transportation Engineering (TE) |
| Chairperson(s) | Pichai Taneerananon |
| Examination Committee(s) | Nakatsuji, Takashi;Kunnawee Kanitpong |
| Scholarship Donor(s) | Asian Institute of Technology Fellowship |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2007 |