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Incorporating DMS Data into PORTAL. DMS = Dynamic Message Sign DMS display travel time, accident information, amber alerts Approximately 17 DMS in the Portland Metro area, about 70 state-wide DMS data DMS data provided by ODOT
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Incorporating DMS Data into PORTAL • DMS = Dynamic Message Sign • DMS display travel time, accident information, amber alerts • Approximately 17 DMS in the Portland Metro area, about 70 state-wide • DMS data • DMS data provided by ODOT • Approx 30,000 messages from Feb 2004 through December 2006 (~1000 messages/month) • Why? • Try to verify travel time messages on VMS signs • Investigate the association between VMS messages and traffic delays
DMS Data Raw Data: Database Storage:
Display of DMS Data • Sample display of DMS Data • Display will be incorporated in PORTAL soon (work ongoing)
To I-205 * Miles traveled 8 minutes from Terwilliger VMS 298.38 10-12 min 12-15 min 12-15 min 10-12 min I-205
To I-205 * Time to travel 8 miles from Terwilliger VMS 298.38 10-12 min 12-15 min 10-12 min 12-15 min I-205