New Uses for Archived Data Cathy McGhee, PE Senior Research Scientist Brian L. Smith, Ph.D....
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New Uses for Archived Data Cathy McGhee, PE Senior Research Scientist Brian L. Smith, Ph.D. Associate Professor ITS America Annual Meeting May 2, 2005
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Transcript of New Uses for Archived Data Cathy McGhee, PE Senior Research Scientist Brian L. Smith, Ph.D....
New Uses for Archived Data
Cathy McGhee, PESenior Research Scientist
Brian L. Smith, Ph.D.Associate Professor
ITS America Annual MeetingMay 2, 2005
2 2005 ITS America Annual Meeting
Presentation Overview What is operations data? Putting operations data to use
ADMS Virginia Benefits of ADMS Virginia Future Challenges
3 2005 ITS America Annual Meeting
Operations Data Wide variety of data collected to support
“real-time” operations Data includes:
Volume Speed Occupancy Travel Time Incident Descriptions Signal Control Parameters
This data is changing …
4 2005 ITS America Annual Meeting
Using Operations Data Data has a defined, and limited, role
to support real-time operations Traditionally, data has not been
used further once this role is fulfilled However, recent experience
illustrates that this data may be more valuable in an archival role
5 2005 ITS America Annual Meeting
Smart Travel Laboratory Joint facility of UVA Center for
Transportation Studies and VDOT Official intelligent transportation
systems (ITS) archive for VDOT Distinguishing characteristic:
Operations data streams from all major facilities in Virginia 11 million rows of day every day
6 2005 ITS America Annual Meeting
ADMS – Gateway to the Data Virginia’s Archived Data
Management System (ADMS) is a web-application that provides access to the data and analysis tools
Developed by $1M FHWA grant Production system currently being
established at VDOT’s Information Technology Applications Division
7 2005 ITS America Annual Meeting
Planning for Operations Virginia ADMS provides a tool to be
used to optimize our incident response plans. Stephany Hanshaw, VDOT
8 2005 ITS America Annual Meeting
FIRT Reduction Impacts
0
5
10
15
20
25
30
35
40
45
50
Oct-95 Mar-97 Jul-98 Dec-99 Apr-01 Sep-02 Jan-04 May-05
Du
rati
on
(M
inu
tes)
9 2005 ITS America Annual Meeting
FIRT Impacts
0
500
1000
1500
2000
2500
3000
3500
4000
4500
Oct.95 Mar.97 Jul.98 Dec.99 Apr.01 Sep.02 Jan.04 May.05
No
. of
Rep
ort
ed In
cid
ents
10 2005 ITS America Annual Meeting
Emergency Planning & Operations Our goals for the city’s signal control
system include developing timing plans for both planned and unplanned traffic events … Having a library of real data from VDOT and other localities at our fingertips is invaluable in developing plans for special events. John Yorks, City of Hampton
11 2005 ITS America Annual Meeting
Hurricane Isabel
12 2005 ITS America Annual Meeting
Regional Planning As a regional planning agency, we constantly
are in need of many types of traffic data on a regional level. The Hampton Roads MPO staffs use speed, volume and incident data from Virginia ADMS to calibrate the long range transportation planning/air quality model of the region. Camelia Ravanbakht, Principal Transportation
Engineer of the Hampton Roads Planning District Commission
13 2005 ITS America Annual Meeting
Environmental Analyses For the first time in Virginia, the ADMS
system provides the customer with instant real-time and archived traffic data from several systems. This quick, easy to use, reliable data source not only greatly improves access to quality data, but also saves time and makes it easier to obtain real data in a usable format. Amy Costello, VDOT
14 2005 ITS America Annual Meeting
Performance Measurement The immediate benefit provided by the
ADMS has been internal transportation system performance analysis. This internal evaluation at the lowest level allows us to begin to determine the local benefit of ITS and traffic and congestion management strategies. ADMS gives me the tools I need to do this. Stephany Hanshaw, VDOT
15 2005 ITS America Annual Meeting
Northern Virginia HOVSunday - 991 Group
0
1000
2000
3000
4000
5000
6000
7000
8000
0:00
1:00
2:00
3:00
4:00
5:00
6:00
7:00
8:00
9:00
10:0
0
11:0
0
12:0
0
13:0
0
14:0
0
15:0
0
16:0
0
17:0
0
18:0
0
19:0
0
20:0
0
21:0
0
22:0
0
23:0
0
Vol
ume
(veh
/h)
15 per. Mov. Avg. (North) 15 per. Mov. Avg. (South)
Northbound HOV operationNorthbound volumes significantly higher from 5 AM onward
16 2005 ITS America Annual Meeting
Speed Index – Hampton Roads 2004
17 2005 ITS America Annual Meeting
Speed Index – Regional Measurement
18 2005 ITS America Annual Meeting
I-66 Eastbound – Afternoon Incident
0
10
20
30
40
50
60
70
80
0628
08410934
103311
57130
014
06151
31629
1736
18351936
time
speed travel speed
speed limitSI = 21.2 avg spd = 11 mph
19 2005 ITS America Annual Meeting
Incident Impact
Date 0600-2000 1700-1900 6/17/04, I-66 EB 56.2 21.2
June Average, I-66 EB 84.4 74.6 6/17/04, Rest of Region 71.7 43.9
June Average, Rest of Region 86.2 76.9
20 2005 ITS America Annual Meeting
Future Challenges Changing data
Moving away from point detectors to link measures
Data quality Tools to support transportation
professionals Linking ADMS tools back into operations
21 2005 ITS America Annual Meeting
For More Information
Cathy [email protected]
Brian L. [email protected]
http://cts.virginia.edu
