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Moscow is the Most Congested City: TomTom

On average, journey times in Moscow are 66% longer during non-congested periods when traffic is flowing freely, and 106% longer during morning rush hour.

In-car location and navigation solutions provider TomTom today – April 4 – announced the 2012 Congestion Index, a report comparing congestion levels in 2012 versus 2011 in 161 cities and across five continents. The Annual Congestion Index finds Moscow the most congested city.

TomTom’s Congestion Index is said to be a barometer of congestion in urban areas. The Index is based on real travel time data captured by vehicles driving the entire road network. TomTom’s traffic database contains over six trillion data measurements and is growing by five billion measurements every day, says the company.

[ Also Read: What Social Networkers Say About Traffic in India ]

The top ten most congested cities, ranked by overall Congestion Level, in 2012 are:

1. Moscow 66%

2. Istanbul 55%

3. Warsaw 42%

4. Marseille 40%

5. Palermo 39%

6. Los Angeles 33%

7. Sydney 33%

8. Stuttgart 33%

9. Paris 33%

10. Rome 33%

“TomTom HD Traffic has the potential to ease congestion in cities and urban areas by routing drivers away from congested areas,” said Ralf-Peter Schäfer, head of Traffic at TomTom.

The methodology used in the Congestion Index compares measured travel times during non-congested periods (free flow) with travel times in peak hours.

The difference is expressed as a percentage increase in travel time. The Index takes into account local roads, arterials, as well as highways. All data is based on actual GPS-based measurements.

TomTom’s Congestion Index, including individual continent and city reports, can be found at

Founded in 1991, TomTom (AEX:TOM2) is a leading supplier of in-car location and navigation products and services. Headquartered in Amsterdam, it sells its products in over 40 countries.

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