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Intelligent Transportation Systems (ITS). CEE 320 Steve Muench. Outline. Need for traffic solutions Possible solutions Intelligent Transportation Systems. Road Use Growth. From the Bureau of Transportation Statistics, National Transportation Statistics 2003.

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Presentation Transcript
outline
Outline
  • Need for traffic solutions
  • Possible solutions
  • Intelligent Transportation Systems
road use growth
Road Use Growth

From the Bureau of Transportation Statistics, National Transportation Statistics 2003

problems caused by congestion
Problems Caused by Congestion
  • Increased…
    • Travel time
    • Travel cost
    • Air pollution
    • Accident risk
options
Options
  • Construct new roads
    • Covered in geometric design
    • Not likely to happen on a large scale
  • Reduce Traffic
    • Travel demand management
    • Alternative transportation
  • Increase existing infrastructure capacity
    • Uses intelligent transportation systems (ITS)
option 1 construction
Option 1: Construction

Highway Construction Cost Sampling

General ConclusionHighways cost $1 to $10 million per lane-mile to build

option 2 alternative transport
Option 2: Alternative Transport

But significant new rail capacity will face the same hurdles as new highway capacity.

option 2 alternative transport1
Option 2: Alternative Transport

SkyTran: Personal MagLev Transporter

option 3 increase existing infrastructure capacity
Option 3: Increase Existing Infrastructure Capacity
  • An alternative to expensive new highway construction is the implementation of strategies that promote more efficient utilization of transportation infrastructures.
  • These strategies are known as the Intelligent Transportation Systems (ITS), which aims to reduce travel time, ease delay and congestion, improve safety, and reduce pollutant emissions
how much capacity is there
How Much Capacity Is There?

Full Capacity

Highway Capacity

how much capacity is there1
How Much Capacity Is There?

Remaining Effective Capacity

Incidents can comprise 50% of peak period congestion.

1 min delay in clearance = 4 to 5 min of traffic backup.

Highway Capacity

Incidents: more delay is caused by incidents than

by recurring peak period congestion.

how much capacity is there2
How Much Capacity Is There?

Remaining Effective Capacity

Caltrans reports 20% of freeway centerline miles are under construction.

Work zones: major cost is delay imparted to the traveler

Highway Capacity

Incidents: more delay is caused by incidents than

by recurring peak period congestion.

how much capacity is there3
How Much Capacity Is There?

Remaining Effective Capacity

75% of NHS is subject to snow & 100% is subject to rain.

Weather: Snow, fog, rain can all restrict capacity

Work zones: major cost is delay imparted to the traveler

Highway Capacity

Incidents: more delay is caused by incidents than

by recurring peak period congestion.

how much capacity is there4
How Much Capacity Is There?

Remaining Effective Capacity

Periodic events can cause further restrict capacity.

Special events and disasters further restrict capacity

Weather: Snow, fog, rain can all restrict capacity

Work zones: major cost is delay imparted to the traveler

Highway Capacity

Incidents: more delay is caused by incidents than

by recurring peak period congestion.

how much capacity is there5
How Much Capacity Is There?

Remaining Effective Capacity

Special events and disasters further restrict capacity

Weather: Snow, fog, rain can all restrict capacity

Work zones: major cost is delay imparted to the traveler

Highway Capacity

Incidents: more delay is caused by incidents than

by recurring peak period congestion.

how much capacity is there6
How Much Capacity Is There?

ITS

Remaining Effective Capacity

Highway Capacity

five primary functional areas of its
Five Primary Functional Areas of ITS
  • Advanced Traffic Management Systems (ATMS)
  • Advanced Traveler Information Systems (ATIS)
  • Commercial Vehicle Operations (CVO)
  • Advanced Public Transportation Systems (APTS)
  • Advanced Vehicle Control Systems (AVCS)
advanced traffic management systems
Advanced Traffic Management Systems

Photo from the Human-Computer Interaction Lab: University of Maryland

wap traffic
WAP Traffic

www.wiresoft.net/traffic/seattle

commercial vehicle operations
Commercial Vehicle Operations
  • Apply, pay for and receive permits, registrations, and licenses electronically
  • Share of common trucking data across agencies
  • Exchange information electronically with roadside enforcement personnel
  • Electronic “screening” of trucks for safety or other regulatory violations
  • Share information across state lines and with Federal information systems
an example of apts
An Example of APTS

http://busview.its.washington.edu/busview_launch.jsp?maps=gif

seattle bus monster
Seattle Bus Monster

http://www.busmonster.com

advanced vehicle control systems
Advanced Vehicle Control Systems

Intelligent Cruise Control (ICC) System