eprintid: 37757
rev_number: 27
userid: 9210
dir: disk0/00/03/77/57
datestamp: 2020-01-28 17:06:37
lastmod: 2020-01-28 17:06:37
status_changed: 2020-01-28 17:06:37
type: thesis_degree
metadata_visibility: show
contact_email: mam753@pitt.edu
eprint_status: archive
creators_name: Martins Cavalcante de Macedo, Mateus
creators_email: mam753@pitt.edu
creators_id: mam753
title: Safety Evaluation of a Shared Bus-Bike Lane (SBBL) using Video Recorded Conflict Data
ispublished: unpub
divisions: sch_eng_civilenvironmental
full_text_status: public
keywords: Traffic; Transportation; Shared Bus-Bike Lane; SBBL; Bus; Bicycle; Conflict; Safety
abstract: Focusing on promoting sustainable transportation, cities such as Pittsburgh have been implementing infrastructures to move alternative modes such as transit and bicycles. However, limited by the current road framework which focus on automobiles, decision makers have to creatively retrofit the streets to accommodate these modes. This dissertation research analyzes a newly-implemented Contra-Flow Shared Bus-Bike Lane (SBBL) in Downtown Pittsburgh and evaluates the safety level for cyclists by scrutinizing video data recorded for 192 hours in several corridor intersections. The evaluation compares the SBBL with the opposite General lane and it is based on both the amount of interactions that a cyclist had with a motor vehicle and number of instances that a cyclist did an unwanted maneuver.

Multiple conclusions could be taken from this study. Mainly, the safety benefits of a SBBL for the cyclists are palpable, as the conflict rate between cyclists that interact with motor vehicles against the total number of cyclists recorded goes down to half (42.84% interacted with vehicles the general lane while only 18.10% cyclists in SBBL had to interact with a bus). Regarding undesirable movements that may put the cyclists and/or others at risk, the SBBL cyclists did have higher rates (17.40% of all SBBL cyclists performed a high-risk maneuver vs. 8.82% General Lane’s cyclists) however those number are interpreted as related to connectivity issues between the Smithfield corridor and another bike infrastructure.
date: 2020-01-28
date_type: published
pages: 155
institution: University of Pittsburgh
refereed: TRUE
etdcommittee_type: thesis_advisor
etdcommittee_type: committee_chair
etdcommittee_type: committee_member
etdcommittee_name: Magalotti, Mark
etdcommittee_name: Johnson, Keith
etdcommittee_name: Stevanovic, Aleksandar
etdcommittee_email: mjm25@pitt.edu
etdcommittee_email: kaj8@pitt.edu
etdcommittee_email: stevanovic@pitt.edu
etdcommittee_id: mjm25
etdcommittee_id: kaj8
etdcommittee_id: stevanovic
etd_defense_date: 2019-11-07
etd_approval_date: 2020-01-28
etd_submission_date: 2019-11-06
etd_release_date: 2020-01-28
etd_access_restriction: immediate
etd_patent_pending: FALSE
thesis_type: thesis
degree: MS
citation:   Martins Cavalcante de Macedo, Mateus  (2020) Safety Evaluation of a Shared Bus-Bike Lane (SBBL) using Video Recorded Conflict Data.  Master's Thesis, University of Pittsburgh.    (Unpublished)  
document_url: http://d-scholarship-dev.library.pitt.edu/37757/7/MateusMartins_ThesisDocument.pdf