data collection methods blufax: vehicle identification using bluetooth mac addresses – provides...
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Data Collection Methods
• BluFax: vehicle identification using bluetooth MAC addresses – provides corridor traffic patterns (origin-destination data) and vehicle travel-times in SR-91 corridor study area
• Wavetronix: vehicle detection radar units – provides 100% vehicle classification counts (auto and truck) in SR-91 corridor study area
• PeMS: vehicle counts and speeds using Caltrans in-pavement vehicle detection induction loops (450+ locations throughout Riverside, San Bernardino, Orange and Los Angeles Counties)
SR-91 Corridor Travel Patterns
• BluFax and Wavetronix data was collected between November 1st and November 10th 2010
• Data was aggregated to provide average weekday AM and PM peak period travel patterns consistent with modeling time periods
• Combining the BluFax origin-destination traffic data (in percent) with the Wavetronix classification count data provides complete corridor AM and PM peak period travel patterns
SR-91 Corridor: BluFax and Wavetronix Data Collection Locations
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SR-91 EASTBOUNDAM Percent
AM Volume
SR-91 EASTBOUNDPM Percent
PM Volume
SR-91 WESTBOUNDAM Percent
AM Volume
SR-91 WESTBOUNDPM Percent
PM Volume
SR-71 SOUTHBOUNDAM Percent
AM Volume
SR-71 SOUTHBOUNDPM Percent
PM Volume
I-15 SOUTHBOUNDAM Percent
AM Volume
I-15 SOUTHBOUNDPM Percent
PM Volume
I-15 NORTHBOUNDAM Percent
AM Volume
I-15 NORTHBOUNDPM Percent
PM Volume
SR-91 Corridor Travel-times• BluFax data collected Nov 1 Nov 10, 2010• Data was aggregated to provide average
weekday travel-time summations in 15-minute increments
• Travel-time graphics (plots) reveal congested freeway segments and time periods
• PeMS data provides weekday average hourly traffic speeds at 450+ Caltrans freeway locations adjacent or relevant to the SR-91 corridor
• PeMS data still being analyzed – data summaries before end of December
SR-91 Corridor: BluFax and Wavetronix Data Collection Locations
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34
56
7
Corridor (Segment) Travel-times
Corridor (Segment) Travel-times
Corridor (Segment) Travel-times
Corridor (Segment) Travel-times
Corridor (Segment) Travel-times
Corridor (Segment) Travel-times