|
1
|
- Brian Cronin, Team Leader, Research,
Intelligent Transportation Systems Joint Program Office
- Research and Innovative Technology Administration, USDOT
- Brian.Cronin@DOT.GOV
|
|
2
|
|
|
3
|
- Safety – 32,885 highway deaths in 2010, 5,400,000 crashes/year
- Opportunity - Intersection safety, where 7% of fatalities at signalized
intersections ($19 billion annual cost) and 14% at non-signalized
intersections
- Run off Road – 40% of fatal crashes
- Mobility – 4,200,000,000 hours of travel delay, $80,000,000,000 cost of
urban congestion
- Cooperative Adaptive Cruise Control could improve freeway capacity by
50%
- Reduce delay from signal system management by 25%
- Improve transit connection success by 90% and reduce wait time to 10
minutes or less
- Improve incident response by 30%
- Improve freight delivery travel time (less wait time at terminals and
faster freeway travel – 15 to 30%)
- Weather
- Improve safety in adverse weather conditions
- Reduce Public Sector cost in treating facilities
- Environment - 2,900,000,000
gallons of wasted fuel
- Reduce Fuel Use
- Reduce Emissions
|
|
4
|
- Assumption
- Vehicles have DSRC and penetration rates climb over a 20 year period
- Cellular based communications to vehicles will continue to evolve
(carry-in and built-in products, with opt-in consumer pay services)
- Connected Vehicle Core System Architecture Guides system evolution.
- Questions
- Where is DSRC Infrastructure Communications Necessary?
- How does the benefits equation for installation of DSRC Infrastructure
change as penetration rates for vehicles and infrastructure evolve?
- How would a cellular based solution occur and provide benefits to the
public sector? We are already seeing some.
- What additional vehicle based data is needed to enable applications that
solve problems? Over what portion of a trip is that data needed? When
and where is that data needed?
- What information is necessary to send from the infrastructure to
vehicles?
|
|
5
|
|
|
6
|
|
|
7
|
- Enable the Critical Infrastructure Technology
- Communications
- Positioning
- Signal Phase and Timing Messaging
- Developing the Prototype Roadside Equipment
- Determine Benefits through Applications Development and Testing
- Red Light Violation Warning
- Curve Speed Warning
- Rural Stop Sign Assist
- Transit Pedestrian
- Truck - Smart Roadside
- Create Implementation Guidance
- We are in the middle of the application definition phase and about to
enter into application prototyping and testing.
|
|
8
|
|
|
9
|
|
|
10
|
- What DSRC-specific apps are most valuable? What are the benefits?
- How will we cost-effectively obtain absolute positioning?
- How/when might equipment installation occur? Signal upgrades, targeted
intersections, transit enhancements, high accident curves, truck
inspection stations?
- What info do you need to invest in DSRC infrastructure? Currently, application investment
assumes existing local and federal funding sources.
|
|
11
|
- Determine Approaches to Capturing and Managing Multi-sourced Data
- Determine Benefits from Applications
- Identify and Define Applications
- Build and Test Prototype Applications
- Develop Implementation Guidance
- Policies
- Standards
- Specifications
- We are defining applications in 6 high priority bundles (freeway
operations, arterials, incident management, transit, freight, and
traveler information) and will move into application development soon.
- Weather Research has dedicated funding and a similar approach.
- AERIS Program (Environment) has similar approach, without funding for
specific application development and testing.
|
|
12
|
|
|
13
|
- Existing Sources
- States purchase information based on GPS probe data collected through
cellular from private entities
- Infrastructure Based Sensors providing data to management centers
- V2V provides
- Basic Safety Message Part 1
- Core data elements communicated 10x per second via DSRC
- Basic Safety Message Part 2
- Additional data elements communicated via DSRC when an “event” happens
- Mobility, Weather and AERIS Need What?
|
|
14
|
|
|
15
|
|
|
16
|
|
|
17
|
|
|
18
|
|
|
19
|
- What specific data elements do you need?
- How often do you need them?
- What are the benefits of the applications?
- How do you get the data?
- Installation of equipment?
- Purchase from a data aggregator?
- What new opportunities are there with cellular and a world of apps?
|
|
20
|
- V2I Safety and Mobility
Applications Prototyped
|
|
21
|
|
|
22
|
|
|
23
|
|