rcoc’s real-time traffic web site enhancements ahmad jawad road commission of oakland county...
TRANSCRIPT
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RCOC’s Real-Time Traffic RCOC’s Real-Time Traffic Web Site EnhancementsWeb Site Enhancements
Ahmad Jawad
Road Commission of Oakland CountyQingyan (Ken) Yang, Preeti Agarwal, Jeff Manring
Iteris Inc
San Antonio, Texas
April 26-29, 2004
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FFaster aster AAnd nd SSafer afer TTravel -ravel -TThrough hrough RRouting & outing & AAdvanced dvanced CControlsontrols
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IntroductionIntroduction
Road Commission for Oakland County’s FAST-TRAC ITS project
Enhancement of RCOC real-time traffic web
Lessons learnt and future efforts
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FAST-TRAC ComponentsFAST-TRAC Components
TIMS
SCATSRWI
S
MITSC (MDOT)
CATV
SMART(AVL EQUIPPED)
VTIMS USERS WORLD-WIDE WEB USERS
AUTOSCOPE
CCTV SYSTEM
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FAST-TRAC Fact SheetFAST-TRAC Fact Sheet First local unit of government to initiate an ITS
project of this magnitude in US. First suburban adaptive traffic control system in
US. First test of video detection for adaptive traffic
control in the world. Largest adaptive signal system in North America. Largest video vehicle detection system in the
world.
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RCOC Real-Time Traffic WebRCOC Real-Time Traffic Web
First Internet-based real-time arterial traffic congestion map
On-line more than four yearsProvides comprehensive traffic information
to general publicGradual enhancement by taking advantage
of new Internet technologies, such as XML
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Traffic Data PresentationTraffic Data Presentation From MITSC – Freeway Data
– Freeway speeds– Roadwork events– Incident events– Changeable Message Sign (CMS) messages– Video snapshots
From RCOC – Arterial Data– Signal congestion data– Road Weather Information System (RWIS) data,
Roadwork events– Video snapshots
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RCOC Real-time Traffic WebRCOC Real-time Traffic Web
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Data Presentation on RCOC Data Presentation on RCOC Real-time Traffic Web Real-time Traffic Web
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RCOC Real-time Traffic WebRCOC Real-time Traffic Web
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First two years the usual feed back was – complex to use – extremely slow via low speed phone line– overwhelming information for general public– more of an experts web site then an average
commuter.
RCOC Real-time Traffic WebRCOC Real-time Traffic Web
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Enhancements of Web PageEnhancements of Web Page
1. Improvement of Web Page Access Speed- Response time improvement
- Enhancing the content of real-time traffic information
2. Developed XML based data storage and distribution mechanism
3. Better presentation of arterial congestion information - Instant announcement message
- Colored roadway segment
4. Support a data feed (FTP) to outside agencies.
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Improvement of Web Page AccessImprovement of Web Page Access
Improve the user interface – More user friendly accessing
Improve web page response time– Efficient web map generation
Enhance the content of real-time traffic information– Freeway & arterial traffic information
integration
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XML Based Data FormatXML Based Data FormateXtensible Markup Language
– Designed for data exchange– License free, well supported by W3C– Platform independent
Support XML based data format– TIMS internal data definition– TMDD based data definition
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XML Example for RoadworkXML Example for Roadwork<roadwork id = '903'>
<location>Grand River Road</location><locator>1</locator><cross_street1>Beck Road east to CSX Rail Road</cross_street1><cross_street2></cross_street2><direction>5</direction><affected_lanes>-4</affected_lanes><start_date>4/15/2003</start_date><end_date>11/30/2003</end_date><effective_days>0</effective_days><active>1</active><description>City of Novi is widening this road to five lanes. Open
to local traffic but closed at CSX bridge.</description><agency>RCOC</agency><phone_num>(248) 858-7250</phone_num>
</roadwork>
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Presentation of Arterial Presentation of Arterial Congestion Information Congestion Information
Before– Congestion color at SCATS critical intersection– Detailed congestion approach for SCATS
critical intersection
After– Congestion segment color for SCATS
subsystem (intersection group) by taking advantage of GIS software
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Arterial Congestion – BeforeArterial Congestion – Before
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Arterial Congestion – AfterArterial Congestion – After
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Instant Announcement Message Instant Announcement Message
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Traffic Data DistributionTraffic Data Distribution
Traffic information distribution– FTP XML data files periodically– Capability of sending all kinds of traffic
information– Current feed users
Tele Atlas General Motor Research Center
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Traffic Web Yearly Access CountTraffic Web Yearly Access Count
Web Access - Yearly Increases
2000
2001
2002
2003
2004
-2000
3000
8000
13000
18000
23000
28000
2000 2001 2002 2003 2004
Year
Nu
mb
er o
f H
its
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Web Monthly CountsWeb Monthly Counts(January 2003 vs January 2004)(January 2003 vs January 2004)
Web Page Access - January 03 vs 04
-100
100
300
500
700
900
1100
1300
1500
1700
Days
Nu
mb
er
of
hit
s
Jan, 2004
Jan, 2003
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Lessons LearntLessons Learnt Balance of perspective between technology and
needs– Cutting edge technology– Simplicity pays off
Flexibility in integrating / distribution traffic data– Real time data requires constant updates, data intensive– Flexibility in data configuration
Open architecture and gradual migration– Start small and grow with enhancements
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Future EffortsFuture Efforts Future Efforts
– Persistence is the key Constantly on the watch for improvements Enhancements escalate public interests
– Enhancing the data sharing capability more video snapshots /live video on-line Integrate with developing web-based data collection system
(Virtual TIMS) Real time data sharing with OEMs
– Providing the further research opportunities Data archives for future studies
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Please Come Visit Us On The Please Come Visit Us On The Web At:Web At:
www.rcocweb.org
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QUESTIONS???QUESTIONS???