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MAST Effectiveness Study
GDOT Fast Forward
Billy Bachman, GeoStats
Marwan Abboud, Arcadis
ITS Georgia Annual Meeting
Metro-Atlanta Signal Timing Project
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Effectiveness of overall program
Effectiveness of timing on each corridor
Before/After travel time and delay studies
MOE: Delay, Emissions, Fuel, $
GPS-equipped probe vehicles
Exploring alternative solution: GPS equipped
population sample
ITS Georgia Annual Meeting
ITS Georgia Annual Meeting
ITS Georgia Annual Meeting
ITS Georgia Annual Meeting
ITS Georgia Annual Meeting
Speed Profile – Bells Ferry Rd. - All Time Periods
ITS Georgia Annual Meeting
ITS Georgia Annual Meeting
GPS Population Sample – Panel or VII
Massive amounts of sec-bysec personal travel data for
behavior analysis AND
system performance
ITS Georgia Annual Meeting
ITS Georgia Annual Meeting
Time Period
Route
Distance
1.01
Avg
Speed
18.82
Travel
Time
3:13
AM
Ponce De Leon EB
Mid-day
Ponce De Leon WB
1.01
17.67
PM
Ponce De Leon EB
1.01
PM
Ponce De Leon EB
PM
2
Stopped
Time
0:52
Cong.
Time
1:22
3:26
1
0:30
1:31
11.06
5:29
3
2:07
3:48
1.01
15.46
3:55
4
0:11
2:15
Ponce De Leon EB
1.00
17.65
3:24
2
0:06
2:06
Evening
Ponce De Leon WB
1.01
21.8
2:47
3
0:08
1:04
Evening
Ponce De Leon WB
1.00
19.54
3:04
1
0:01
1:52
Evening
Ponce De Leon EB
1.01
23.13
2:37
1
0:05
0:58
Early Morning
Ponce De Leon EB
0.98
31.78
1:51
0
0:00
0:00
Early Morning
Ponce De Leon WB
0.96
31.14
1:51
0
0:00
0:00
ITS Georgia Annual Meeting
Nb.
Stops
Challenges and Opportunities
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Privacy protection of instrumented
personal vehicles
Data reduction for analyzing and reporting
system performance
Spatial data mining
Spatial data integration / fusion
ITS Georgia Annual Meeting
GPS Probe Vehicles
Detailed performance data
by route/link/intersection
ITS Georgia Annual Meeting
Future Research Notes
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Operational data (GPS, ITS, Mobile phones, etc.)
reduction to different spatial scales and network
representations
Data imputation / cleaning to support various
transportation business functions
Data mining of operational data to extract / estimate
activity patterns
Visualization of spatial / temporal data
Advance statistical understanding and communication of
variance / error and other measures
Data collection logistics … does sampling strategy
support multiple uses
Design of transportation networks to support operations
information and to support cross-discipline integration
ITS Georgia Annual Meeting