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Smart Solutions for Urban Traffic Challenges

Discover why traffic congestion is increasing, how road networks are managed, and ways to make roads smarter to address the growing demands of working population and vehicle ownership. Learn about the impact of poorly managed roads and the benefits of implementing intelligent traffic management systems.

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Smart Solutions for Urban Traffic Challenges

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  1. Make city roads smarter today! Pravin Varaiya Electrical Engineering & Computer Sciences, UC Berkeley Institute for Advanced Study, Hong Kong UST

  2. Outline • Why is traffic congestion so bad • Why is road network poorly managed • How to make our roads smarter

  3. Working population • Both % working age population and income are growing

  4. Vehicle growth faster than income • Vehicle ownership grows twice as rapidly as income in $3,000-$10,000 per capita range • Number of vehicles will triple by 2030 Fig Source: Joyce Dargay, Dermot Gately and Martin Sommer, 2007, Vehicle Ownership and Income Growth, Worldwide: 1960-2030

  5. Auto market in developing countries 14.47% annual vehicle growth in India

  6. Strains on road network • Population spread • Rapid spatial growth and urban sprawl • Under-resourced road network • Between 1970-2000 road network increased 3x, vehicles increased 16x • Peak-time average speed10-15 kph on main roads; 21-39 kph on arterial roads

  7. Why traffic congestion Fastest growing car market in world + + = Increasing working population Increasing income per capita Decreasing car prices + + = Urban traffic congestion Increasing car ownership Increasing population spread Under-resourced road network

  8. Cost of poorly managed roads • Effects of Congestion • Fuel loss at signalized intersections- Rs 995 crores per year, Rs 80 lakhs daily @ Moti Bagh crossing • Congestion delay costs Rs. 240 lakhs annually • Vehicles in congestion emit nearly four times more pollution • Autos greatest source of pollution (Delhi 66%, Mumbai 52%) • Accidents and fatalities • More than 25 accidents and 5 fatalities per day in Delhi • India has 1% of the world's cars, but 10% of traffic fatalities • 5x fatalities of USA with 1/40x cars • Economic cost of accidents in Delhi is estimated to be Rs.35 lakhs per day • These costs can be reduced by better management Source: Delhi Traffic Police Dept , Economic Survey of Delhi 2002

  9. Why poor management • Transportation planners and engineers have many methods (theories and tools) to make road network efficient • These methods need comprehensive traffic data • India’s cities need urban traffic data system to support good road network management

  10. Urban traffic data system • Sensing, data backhaul, data base, applications: • Road performance • Signal control • Transit priority • Emissions reduction • Parking policy • Traveler information • Incident management • Diversion …

  11. Conclusion • Urban auto traffic demand will grow rapidly • In absence of intelligent management the cost in fuel, emissions, delay are excessive • Without measurement, management is blind • New (and existing) road networks should develop urban traffic data system

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