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OTREC-RR-10-15 By James Strathman
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This report analyzes factors contributing to bus operations safety incidents at TriMet, the transit provider for the Portland Oregon metropolitan region. The analysis focuses on 4,631 collision and... More > non-collision incidents that occurred between 2006 and 2009. Empirical analysis of these incidents draws on a wide array of operator-level data recovered by transit ITS technologies in combination with information from TriMet’s human resources, scheduling, and customer relations databases. Incident frequencies are estimated in relation to operators’ demographic characteristics, employment status, assigned work characteristics, service delivery and performance indicators, temporal factors, and customer information. Apart from identifying factors that are empirically related to the frequency of safety incidents, the findings offer insights into operations policies and practices that hold promise for improving safety.< Less
OTREC-RR-09-05 By James Strathman
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This report analyzes factors contributing to short duration (one to three days) unscheduled absences among operators at TriMet, the transit provider for the Portland, Oregon metropolitan region. The... More > analysis draws on a wide array of operator-specific information recovered by transit ITS technologies in combination with information from the agency’s human resources, scheduling, incident, and customer relations databases. The likelihood of an absence is estimated in relation to personal characteristics, employment status, aspects of assigned work, service delivery and performance indicators, temporal factors, and customer feedback. The findings can be used directly to support extraboard planning practices. More generally, the findings point to changes in policies and practices that would potentially reduce the incidence of short duration absences.< Less
OTREC-RR-09-05 By James Strathman
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This report analyzes factors contributing to short duration (one to three days) unscheduled absences among operators at TriMet, the transit provider for the Portland, Oregon metropolitan region. The... More > analysis draws on a wide array of operator-specific information recovered by transit ITS technologies in combination with information from the agency’s human resources, scheduling, incident, and customer relations databases. The likelihood of an absence is estimated in relation to personal characteristics, employment status, aspects of assigned work, service delivery and performance indicators, temporal factors, and customer feedback. The findings can be used directly to support extraboard planning practices. More generally, the findings point to changes in policies and practices that would potentially reduce the incidence of short duration absences.< Less
OTREC-RR-10-15 By James Strathman
Paperback: $6.58
Ships in 3-5 business days
This report analyzes factors contributing to bus operations safety incidents at TriMet, the transit provider for the Portland Oregon metropolitan region. The analysis focuses on 4,631 collision and... More > non-collision incidents that occurred between 2006 and 2009. Empirical analysis of these incidents draws on a wide array of operator-level data recovered by transit ITS technologies in combination with information from TriMet’s human resources, scheduling, and customer relations databases. Incident frequencies are estimated in relation to operators’ demographic characteristics, employment status, assigned work characteristics, service delivery and performance indicators, temporal factors, and customer information. Apart from identifying factors that are empirically related to the frequency of safety incidents, the findings offer insights into operations policies and practices that hold promise for improving safety.< Less
OTREC-RR-11-14 By James Strathman
Paperback: $6.30
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This paper examines extraboard operations and management at TriMet, the transit provider for the Portland Oregon metropolitan area. The extraboard consists of a pool of operators who fill open work... More > resulting from absences and other causes. The paper first examines the general performance of the extraboard in filling open work, drawing on seven years of daily operations data from three bus garages. It then presents statistical analyses focusing on open work patterns and the effects of selected work rules on operator utilization and service delivery. Lastly, suggestions are made for improving the efficiency of extraboard operations.< Less
OTREC-RR-11-14 By Steve Callas, James Strathman, Sung Moon Kwon
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This paper examines extraboard operations and management at TriMet, the transit provider for the Portland Oregon metropolitan area. The extraboard consists of a pool of operators who fill open work... More > resulting from absences and other causes. The paper first examines the general performance of the extraboard in filling open work, drawing on seven years of daily operations data from three bus garages. It then presents statistical analyses focusing on open work patterns and the effects of selected work rules on operator utilization and service delivery. Lastly, suggestions are made for improving the efficiency of extraboard operations.< Less
OTREC-RR-13-09 By Steve Callas, James Strathman, Sung-Moon Kwon
Paperback: $6.25
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This paper presents the results of a survey of TriMet bus operators addressing safety risks in their assigned work. Surveyed risk factors were organized into five categories: vehicle design and... More > condition; route layout; operating conditions; fatigue; and stress. Operators perceived fatigue and stress to be the greatest sources of safety risk, with split shifts, schedule pressures, passenger distractions, and negligence of other roadway users being the primary contributors to these conditions. Operators were also surveyed on the frequency and nature of “close calls,” with two-thirds of the operators indicating that such incidents occurred at least weekly and most often involved being cut off by other roadway users. Operators endorsed high visibility enforcement initiatives to improve safety, focusing primarily on negligent behavior. Other operator recommended changes addressed scheduling practices and the need for more public information and outreach on safety risks.< Less
OTREC-RR-13-09 By Steve Callas, James Strathman, Sung-Moon Kwon
eBook (PDF): $0.00
Download immediately.
This paper presents the results of a survey of TriMet bus operators addressing safety risks in their assigned work. Surveyed risk factors were organized into five categories: vehicle design and... More > condition; route layout; operating conditions; fatigue; and stress. Operators perceived fatigue and stress to be the greatest sources of safety risk, with split shifts, schedule pressures, passenger distractions, and negligence of other roadway users being the primary contributors to these conditions. Operators were also surveyed on the frequency and nature of “close calls,” with two-thirds of the operators indicating that such incidents occurred at least weekly and most often involved being cut off by other roadway users. Operators endorsed high visibility enforcement initiatives to improve safety, focusing primarily on negligent behavior. Other operator-recommended changes addressed scheduling practices and the need for more public information and outreach on safety risks.< Less