More From Christopher Monsere et al.

OTREC-RR-430 By Christopher Monsere
Paperback: $4.49
Prints in 3-5 business days
This research report describes our efforts to assemble and develop a multimodal archive for the Portland-Vancouver region. The preliminary nature of the archiving process means that some of the data... More > are incomplete and samples. The arterial data sources available in the Portland-Vancouver region include data for local agencies (City of Portland, Clark County, WA, TriMet and C-TRAN) covering vehicle, transit, pedestrian, and bicycle modes. We provide descriptions of each data source and a spatial and temporal classification. The report describes the process for extracting data from the agency systems and transferring these data to our multimodal database. A number of novel visualizations were created. These are summarized in this report and examples are shown. Efforts to monitor data quality and automate data quality processing are explored. Finally, the report presents efforts to combine transit and travel time data and signal timing and vehicle count data to generate some sample congestion measures.< Less
OTREC-RR-430 By Christopher Monsere
eBook (PDF): $0.00
This research report describes our efforts to assemble and develop a multimodal archive for the Portland-Vancouver region. The preliminary nature of the archiving process means that some of the data... More > are incomplete and samples. The arterial data sources available in the Portland-Vancouver region include data for local agencies (City of Portland, Clark County, WA, TriMet and C-TRAN) covering vehicle, transit, pedestrian, and bicycle modes. We provide descriptions of each data source and a spatial and temporal classification. The report describes the process for extracting data from the agency systems and transferring these data to our multimodal database. A number of novel visualizations were created. These are summarized in this report and examples are shown. Efforts to monitor data quality and automate data quality processing are explored. Finally, the report presents efforts to combine transit and travel time data and signal timing and vehicle count data to generate some sample congestion measures.< Less
OTREC-RR-13-07 By Miguel Figliozzi et al.
Paperback: $5.80
Prints in 3-5 business days
The Sydney Coordinated Adaptive Traffic System (SCATS) is used to mitigate urban traffic congestion. This research combines SCATS research areas including: a) the relationship between SCATS, traffic... More > volumes, and Transit Signal Priority (TSP); b) between TSP and traffic conditions; and c) the correlation between signal timing and air quality. SCATS showed significant speed improvement at a minor intersection, though major intersection results were mixed. Non-priority signals had a greater impact on travel time than priority signals. A regression model of intersection delays showed major intersections with high cross-street volumes are not likely to experience TSP benefits. Signal timing and queuing have a high impact on pedestrian exposure. Longer green times along the main corridor significantly reduced particulate matter, whereas longer street crossing time increased queuing and exposure. Reduced bus idling time and proper bus shelter orientation are likely to reduce pollution exposure significantly.< Less
OTREC-RR-13-07 By Miguel Figliozzi et al.
eBook (PDF): $0.00
The Sydney Coordinated Adaptive Traffic System (SCATS) is used to mitigate urban traffic congestion. This research combines SCATS research areas including: a) the relationship between SCATS, traffic... More > volumes, and Transit Signal Priority (TSP); b) between TSP and traffic conditions; and c) the correlation between signal timing and air quality. SCATS showed significant speed improvement at a minor intersection, though major intersection results were mixed. Non-priority signals had a greater impact on travel time than priority signals. A regression model of intersection delays showed major intersections with high cross-street volumes are not likely to experience TSP benefits. Signal timing and queuing have a high impact on pedestrian exposure. Longer green times along the main corridor significantly reduced particulate matter, whereas longer street crossing time increased queuing and exposure. Reduced bus idling time and proper bus shelter orientation are likely to reduce pollution exposure significantly.< Less

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