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OTREC-RR-10-08 By Jennifer Dill
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This research examines the use of individualized marketing as a transportation demand management (TDM) strategy, using the City of Portland’s SmartTrips program. This research has two specific... More > aims: (1) to evaluate whether the benefits of these individualized marketing programs continue to at least one year after the project ends; and (2) to examine whether the theory of planned behavior (TPB) can help explain the behavior changes identified. Surveys of residents conducted one or two years after the original program found that the share of daily trips made driving alone, walking, and bicycling were comparable to that found in the previous follow-up surveys.< Less
OTREC-RR-10-08 By Jennifer Dill
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This research examines the use of individualized marketing as a transportation demand management (TDM) strategy, using the City of Portland’s SmartTrips program. This research has two specific... More > aims: (1) to evaluate whether the benefits of these individualized marketing programs continue to at least one year after the project ends; and (2) to examine whether the theory of planned behavior (TPB) can help explain the behavior changes identified. Surveys of residents conducted one or two years after the original program found that the share of daily trips made driving alone, walking, and bicycling were comparable to that found in the previous follow-up surveys.< Less
OTREC-TT-08-01 By Jennifer Dill, Lynn Weigand
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OTREC-RR-08-03 By Jennifer Dill, John Gliebe
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OTREC-RR-08-03 By Jennifer Dill, John Gliebe
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OTREC-TT-08-01 By Jennifer Dill, Lynn Weigand
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OTREC-RR-11-06 By Jennifer Dill, Christopher Monsere, Nathan McNeil
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This report presents a study of bike boxes at 10 signalized intersections in Portland, OR. Boxes were installed to increase cyclist visibility and reduce conflicts with motor vehicles (MVs). Before... More > and after video were analyzed for seven intersections with green boxes, three intersections with uncolored boxes, and two control intersections. User perceptions were measured via surveys of relevant cyclists and motorists. Both observations and motorist surveys found a high rate of compliance and understanding of the markings. Most stopping MVs did not encroach into the bike box. Both MV and bicycle crosswalk encroachment fell significantly at the box locations. Bike boxes had mixed effects on MV encroachment in the bike lane. Observed conflicts at box locations decreased, while the right turns increased. Observations found an improvement in MVs yielding at the bike box locations. Surveys found the majority of both motorists and cyclists thought the boxes made the intersections safer.< Less
OTREC-RR-11-06 By Jennifer Dill, Christopher Monsere, Nathan McNeil
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This report presents a study of bike boxes at 10 signalized intersections in Portland, OR. Boxes were installed to increase cyclist visibility and reduce conflicts with motor vehicles (MVs). Before... More > and after video were analyzed for seven intersections with green boxes, three intersections with uncolored boxes, and two control intersections. User perceptions were measured via surveys of relevant cyclists and motorists. Both observations and motorist surveys found a high rate of compliance and understanding of the markings. Most stopping MVs did not encroach into the bike box. Both MV and bicycle crosswalk encroachment fell significantly at the box locations. Bike boxes had mixed effects on MV encroachment in the bike lane. Observed conflicts at box locations decreased, while the right turns increased. Observations found an improvement in MVs yielding at the bike box locations. Surveys found the majority of both motorists and cyclists thought the boxes made the intersections safer.< Less
OTREC-RR-11-06 By Jennifer Dill, Christopher Monsere, Nathan McNeil
eBook (PDF): $0.00
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This report presents a study of bike boxes at 10 signalized intersections in Portland, OR. Boxes were installed to increase cyclist visibility and reduce conflicts with motor vehicles (MVs). Before... More > and after video were analyzed for seven intersections with green boxes, three intersections with uncolored boxes, and two control intersections. User perceptions were measured via surveys of relevant cyclists and motorists. Both observations and motorist surveys found a high rate of compliance and understanding of the markings. Most stopping MVs did not encroach into the bike box. Both MV and bicycle crosswalk encroachment fell significantly at the box locations. Bike boxes had mixed effects on MV encroachment in the bike lane. Observed conflicts at box locations decreased, while the right turns increased. Observations found an improvement in MVs yielding at the bike box locations. Surveys found the majority of both motorists and cyclists thought the boxes made the intersections safer.< Less
OTREC-RR-11-06 By Jennifer Dill, Christopher Monsere, Nathan McNeil
Paperback: $5.70
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This report presents a study of bike boxes at 10 signalized intersections in Portland, OR. Boxes were installed to increase cyclist visibility and reduce conflicts with motor vehicles (MVs). Before... More > and after video were analyzed for seven intersections with green boxes, three intersections with uncolored boxes, and two control intersections. User perceptions were measured via surveys of relevant cyclists and motorists. Both observations and motorist surveys found a high rate of compliance and understanding of the markings. Most stopping MVs did not encroach into the bike box. Both MV and bicycle crosswalk encroachment fell significantly at the box locations. Bike boxes had mixed effects on MV encroachment in the bike lane. Observed conflicts at box locations decreased, while the right turns increased. Observations found an improvement in MVs yielding at the bike box locations. Surveys found the majority of both motorists and cyclists thought the boxes made the intersections safer.< Less