1. NSF-GREEN CITY PROJECT ( ) Closing the loop between traffic/pollution sensing and vehicle route control using traffic lights and navigators UCLA M.Gerla, G.Pau (CS), B.Taylor (P.Policy), S. Paulson (Atmos) Rutgers University L. Iftode, B. Nath (CS)

2. The Vehicle Transport Challenge
Safety
33,963 deaths/year (2009)
5,800,000 crashes/year
Leading cause of death for ages 4 to 34
Mobility
4.2 billion hours of travel delay
$78 billion cost of urban congestion
Environment
2.9 billion gallons of wasted fuel
22% CO2 from vehicles

3. The Connected Vehicle Program
DOT solution => vehicular communications
Wireless is now at the cross section of several complex systems:
Wireless communications and spectrum
Vehicular traffic (routing, congestion fees..)
Public Transport System
Atmospheric pollution model
Power distribution grid (electric cars, etc)
Driver Behavior and Social Networking

4. The wireless opportunity
Exploit wireless Interaction among systems
Look at system as a whole instead of separate components => stable solutions, avoid pitfalls
Example 1: Better (eco) routes reduce accidents, pollution, congestion, time waste, fuel waste
Example 2: V2V communications help discover and solve local traffic congestion problems
In all cases, wireless channel “closes the loop

5. Methods of Attack Fluid flow models Atmospheric models
Cellular automata; stochastis models
Hierarchical Models
Convex multicommodity optimization
Game theoretical optimization
Control theory
Cognitive Radios; spectrum allocation
Simulation, Emulation, small scale testbeds

6. The Green City Architecture