page_title: Traffic congestion
section_title: India
hierarchical_section_title: Traffic congestion / By country / India
caption_attribution_description: Ratan Lal Market, Kaseru Walan, Paharganj, New Delhi, Delhi, India
context_page_description: Traffic congestion is a condition on transport that is characterised by slower speeds, longer trip times, and increased vehicular queueing. Traffic congestion on urban road networks has increased substantially since the 1950s. When traffic demand is great enough that the interaction between vehicles slows the speed of the traffic stream, this results in some congestion. While congestion is a possibility for any mode of transportation, this article will focus on automobile congestion on public roads.
  As demand approaches the capacity of a road, extreme traffic congestion sets in. When vehicles are fully stopped for periods of time, this is known as a traffic jam or a traffic snarl-up. Traffic congestion can lead to drivers becoming frustrated and engaging in road rage.
  Mathematically, traffic is modeled as a flow through a fixed point on the route, analogously to fluid dynamics.
context_section_description: The number of vehicles in India is quickly increasing as a growing middle class can now afford to buy cars. India's road conditions have not kept up with the increase in vehicle numbers. As a result, India has launched various rapid transit efforts, such as the Kolkata Metro, in Kolkata, and the Rapid Metro, in Gurgaon.
  Various causes for this include:
  Private encroachments
  Non cooperation among drivers
  Unscientific road design
  Lack of free ways / exit ways where local roads and main roads intersect
  Lack of demarcated footpaths
  Lack of bus bays
  Lack of cycle tracks
  Lack of coordination among various government departments (e.g. digging of roads by telecom/water department and leaving it open)
caption: Traffic jam in New Delhi
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