slide1 n.
Skip this Video
Loading SlideShow in 5 Seconds..
IIT Delhi 2004 PowerPoint Presentation
Download Presentation
IIT Delhi 2004

Loading in 2 Seconds...

play fullscreen
1 / 16

IIT Delhi 2004 - PowerPoint PPT Presentation

  • Uploaded on

Clean Air is Not About Tail Pipes (Only). Dinesh Mohan Transportation Research and Injury Prevention Programme Indian Institute of Technology Delhi. IIT Delhi 2004. The Ethical Issue. Many societies do not apply a death penalty no matter how serious the crime

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
Download Presentation

PowerPoint Slideshow about 'IIT Delhi 2004' - aulii

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

Clean Air is Not About Tail Pipes (Only)

Dinesh Mohan

Transportation Research and Injury Prevention Programme

Indian Institute of Technology Delhi

IIT Delhi 2004

the ethical issue
The Ethical Issue
  • Many societies do not apply a death penalty no matter how serious the crime
  • Recently, about a hundred deaths caused by the spread of severe acute respiratory syndrome (SARS) mobilized international efforts to arrest the disease
  • Millions of demonstrators came out on the streets in many countries to protest against a war in their belief that nothing justifies the deaths of innocent individuals

This ethic is absent when we discuss road safety

IIT Delhi 2004

issue of sustainability
Issue of sustainability
  • Motor vehicles have killed more than 20-30 million people and injured > 500 million worldwide

This is not sustainable

  • Emissions will reduce significantly only if more people walk, bicycle and use public transport

Only possible if walking and bicycling made safer

  • Cities will aesthetic, humane and human scale only if streets include large numbers of people walking and playing safely

Only possible if streets free from crime

IIT Delhi 2004



  • Compulsory much of the time in low and middle income societies
  • Route almost mandatory
  • Mode used function of (not in order of priority)
    • Journey time
    • Age
    • Income
    • Sex
    • Health status

Traffic injury

    • Safety


IIT Delhi 2004


Urban > 18

w/o Cars & Mc 10% (70%)

Urban > 18

Total Cars & Mc 4% (30%)

Walk, bicycle, public transport

IIT Delhi 2004


Needs of those who can’t drive or don’t have a vehicle

  • Safe/convenient walking/bicycling spaces
  • Freedom from harassment and crime
  • Protection from the sun
  • Availability of water, snacks, repair shops on the road
  • Public transport close to home and destination
  • Easy availability of affordable taxis

IIT Delhi 2004


Safe/convenient walking/bicycling spaces

  • Speed control by design
    • Arterial roads < 50 km/h
    • Residential/shopping areas < 30 km/h
  • No free left turns
  • Liberal use of roundabouts
  • Safe pedestrian crossings
  • Provision of pedestrian paths on all roads
  • Provision of segregated bicycle paths on all arterial roads

IIT Delhi 2004


Comparison of PM emissions under various scenarios of bus fuels

No shift from buses

!5% shift from buses to 2-wheelers

IIT Delhi 2004


Pedestrian crossings raised 10 cm above road level

“speed humps were associated

with a 53% to 60% reduction in the odds of injury or death among children struck by an automobile in their neighborhood”

American Journal of Public Health, April 2004


Pedestrian Refuge

IIT Delhi 2004



  • Low speeds ensure safety of pedestrians/bicyclists
  • Occupies 1/3 space of cars, same # passengers
  • With 4 stroke, CNG, LPG, pollutes less than car
  • Uses 1/3 energy of car
  • Wears out road much less
  • Less garbage

IIT Delhi 2004


Absence of safety

  • Less use of non-motorized modes
  • Less use of public transport
  • Decrease in health status – about 15% increase in fatality rates from lack of exercise
  • Harmful effects on children’s social development
  • Less extra curricular and sports activities
  • Loss in entertainment and food business
  • Irritable elderly – earlier death
  • Marital discord

IIT Delhi 2004