eprintid: 39474 rev_number: 8 userid: 9893 dir: disk0/00/03/94/74 datestamp: 2020-09-27 22:00:41 lastmod: 2020-09-28 13:52:37 status_changed: 2020-09-27 22:00:41 type: thesis_degree metadata_visibility: show contact_email: yiy65@pitt.edu item_issues_id: thesis_degree_versioning item_issues_id: duplicate_title_39364 item_issues_id: duplicate_title_39372 item_issues_type: thesis_degree_versioning item_issues_type: duplicate_title item_issues_type: duplicate_title item_issues_description: ETD 39474 is using versioning. item_issues_description: Duplicate title to Yang, Yifei Revising Concept of Resonant Cycle Length and Investigation of Resonant Signal Timing Plans. Master's Thesis, University of Pittsburgh. (Unpublished) item_issues_description: Duplicate title to Yang, Yifei Revising Concept of Resonant Cycle Length and Investigation of Resonant Signal Timing Plans. Master's Thesis, University of Pittsburgh. (Unpublished) item_issues_timestamp: 2020-07-15 06:02:29 item_issues_timestamp: 2020-07-17 06:02:27 item_issues_timestamp: 2020-07-29 06:02:27 item_issues_status: autoresolved item_issues_status: autoresolved item_issues_status: autoresolved item_issues_count: 0 eprint_status: archive creators_name: Yang, Yifei creators_email: YIY65@pitt.edu creators_id: yiy65 creators_orcid: 0000-0003-4093-7239 title: Revising Concept of Resonant Cycle Length and Investigation of Resonant Signal Timing Plans ispublished: unpub divisions: sch_eng_civilenvironmental full_text_status: public keywords: Resonant Cycle, Signal Timing Plan, Coordinated Progression, Optimization and Simulation abstract: The most difficult part of designing optimal traffic signal timings is selection of an appropriate cycle length. In recent years, a new concept called “resonant cycle” has been introduced by several researchers referring to a particular cycle length that provides good performance on two-way arterial streets for a wide range of traffic flows. However, an attempt to define a resonant cycle length is a difficult task on its own as it has ambiguous connotation and inconsistent meaning to various scholars. Two major schools of thought are: resonant cycles serve either to provide good progression only for coordinated movements or they provide good conditions for all movements (equally prioritizing traffic on main street and side street). This research addresses inconsistencies in definitions and ambiguity of the meaning of resonant cycle length by introducing a new concept called Resonant Signal Timing Plan (RSTP) that , besides cycle length, considers that the entire set of signal timings (splits, offsets, etc.) needs to be “resonant”, or work well with a range of traffic volumes. To investigate the existence of such an RSTP, a methodology was developed to test a number of signal timing optimization scenarios. Each of the tested signal timing plans was evaluated on overall network level (all movements) and main-corridor level (coordinated movements only). The results of evaluations on network level reveal no existence of the RSTP; each candidate RSTP could provide decent performance only for a few hours of similar traffic demands. Similarly, the corridor-level evaluation did not find any RSTP either as conditions differ significantly for traffic in inbound and outbound directions. date: 2020-09-27 date_type: published pages: 115 institution: University of Pittsburgh refereed: TRUE etdcommittee_type: committee_chair etdcommittee_type: committee_member etdcommittee_type: committee_member etdcommittee_type: committee_member etdcommittee_name: Stevanovic, Aleksandar etdcommittee_name: Johnson, Keith etdcommittee_name: Magalotti, Mark etdcommittee_name: Alavi, Amir etdcommittee_email: stevanovic@pitt.edu etdcommittee_email: kaj8@pitt.edu etdcommittee_email: mjm25@pitt.edu etdcommittee_email: alavi@pitt.edu etdcommittee_id: kaj8 etdcommittee_id: mjm25 etd_defense_date: 2020-07-02 etd_approval_date: 2020-09-27 etd_submission_date: 2020-07-13 etd_release_date: 2020-09-27 etd_access_restriction: immediate etd_patent_pending: FALSE thesis_type: thesis degree: MS citation: Yang, Yifei (2020) Revising Concept of Resonant Cycle Length and Investigation of Resonant Signal Timing Plans. Master's Thesis, University of Pittsburgh. (Unpublished) document_url: http://d-scholarship-dev.library.pitt.edu/39474/1/yangyf_etdPitt2020.pdf