archived data management system in kentucky mei chen, ph.d. dept of civil engineering university of...
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![Page 1: Archived Data Management System in Kentucky Mei Chen, Ph.D. Dept of Civil Engineering University of Kentucky November 7, 2003](https://reader035.vdocuments.mx/reader035/viewer/2022062317/5a4d1af17f8b9ab05997e55a/html5/thumbnails/1.jpg)
Archived Data Management Systemin Kentucky
Mei Chen, Ph.D.Dept of Civil EngineeringUniversity of Kentucky
November 7, 2003
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Background Major ITS deployments in Kentucky
ARTIMIS (The Advanced Regional Traffic Interactive Management and Information System)
82 detectors within KY
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Background (cont’d) Major ITS deployments in Kentucky
TRIMARC (Traffic Response and Incident Management Assisting the River Cities)
71 detectors in KY (2003)
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Data Collected Volume Speed Occupancy Length-based vehicle classification Incident
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Potential Applications Planning
Demand modeling Data reporting Air quality
Operation Performance monitoring Delay management
Safety Speed management
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Major Tasks Develop ADMS functional requirement
Data needs survey Develop data archiving algorithm Develop data quality control strategy Develop a user interface for data
query
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TRIMARC Data Quality2002 TRIMARC Overall Volume Data Quality
93.0%87.4% 86.4%
80.6%
Completeness percentage % passing quality check(compared to raw data)
% of 15min records used tocalculate hourly volume
% of 15min records used tocalculate daily volume
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ARTIMIS Data Quality2002 ARTIMIS Overall Volume Data Quality
19.0%
66.3% 66.3% 64.7%
Completeness percentage % passing quality check(compared to raw data)
% of 15min records used tocalculate hourly volume
% of 15min records used tocalculate daily volume
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Traffic Characteristics Speed distribution
TRIMARC: Segment SKYI64003E (I-64E), MP6.7 2 lanes per direction Friday, December 13, 2003
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SKYI64003E (MP6.7)
0
1020
3040
5060
70
0:00 2:24 4:48 7:12 9:36 12:00 14:24 16:48 19:12 21:36 0:00
Time
Average spe
ed (m
ph)
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Traffic Characteristics (cont’d) Speed – Flow Relationship
TRIMARC: Segment SKYI64003E (I-64E), MP6.7 2 lanes per direction Year 2002: 4-7pm
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SKYI64003E (MP6.7)
0102030405060708090
0 500 1000 1500 2000 2500Flow rate (veh phpl)
Aver
age sp
eed
(mph
)
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ADMS in Kentucky
Research in Progress…