Traffic Congestion in Europe: INRIX U.K. Traffic Scorecard Provides Revealing Look at Traffic Congestion in Cities Across the Country

By Inrix, PRNE
Tuesday, November 2, 2010

U.K. Traffic Worse than Germany, France, Belgium and the Netherlands; London ranks second to Paris as the most traffic clogged city in Europe

KIRKLAND, Washington, November 3, 2010 - INRIX(R), the leading provider of traffic information, released the INRIX
U.K. Traffic Scorecard, the most comprehensive country-wide perspective and
city-by-city analysis on traffic congestion.


U.K. drivers spend more time in traffic compared to drivers in Belgium,
France, Germany, Luxembourg and the Netherlands. London ranks second after
Paris as the most traffic clogged city among the 6 countries analyzed. The
fallout from heavy traffic congestion hits the U.K. economy hard on several
different levels. With many drivers paying over 117.1p at petrol stations and
roads clogged with traffic congestion on average 35 hours a week across the
country's 25 worst bottlenecks, traffic continues to have a major impact on
consumers, the U.K. economy and the environment.

The scorecard found that the worst place and time to be on U.K. roads is
in Manchester on Fridays from 17:00-18:00 where it takes on average 56
percent longer than the same journey in uncongested conditions. Overall, U.K.
drivers incurred a Journey or Travel Time Tax(1) (T3) of 22 percent meaning
that a random journey along the U.K.'s major motorways during peak weekday
driving hours takes an average 22 percent longer than the same journey would
take in uncongested conditions.

By analyzing traffic on major motorways in the country's 25 largest
metropolitan areas, the Scorecard provides a comprehensive snapshot into the
intractable issues of urban traffic congestion. According to the report, the
Top 10 Most Congested Cities in the U.K.(2) span all regions:

    1.  London: Drivers waste 54 hours per year in traffic(2), Worst Hour =
        Friday from 17:00-18:00

    2.  Manchester: Drivers waste 72 hours per year in traffic(2), Worst
        Hour = Friday from 17:00-18:00

    3.  Belfast: Drivers waste 62 hours per year in traffic(2), Worst Hour =
        Monday from 8:00-9:00 AM

    4.  Newcastle upon Tyne: Drivers waste 62 hours per year in traffic(2),
        Worst Hour = Wednesday 8:00-9:00 AM

    5.  Glasglow: Drivers waste 48 hours per year in traffic(2), Worst Hour =
        Tuesday 8:00-9:00 AM

    6.  Birmingham: Drivers waste 53 hours per year in traffic(2), Worst
        Hour = Monday 8:00-9:00 AM

    7.  Leeds-Bradford: Drivers waste 40 hours per year in traffic(2), Worst
        Hour = Monday 8:00-9:00 AM

    8.  Aberdeen: Drivers waste 56 hours per year in traffic(2), Worst Hour =
        Tuesday 8:00-9:00 AM

    9.  Liverpool: Drivers waste 58 hours per year in traffic(2), Worst
        Hour = Monday 8:00-9:00 AM

    10. Edinburgh: Drivers waste 49 hours per year in traffic(2), Worst
        Hour = Wednesday 8:00-9:00 AM

"Our business is built on knowing what's going on with traffic day in and
day out in 20 countries," said Hans Puvogel, GM of INRIX Europe. "The
Scorecard, and the data powering the report, will contribute enormously to a
better understanding of traffic congestion on U.K. roads helping governments
and businesses free people and commerce from gridlock."

The U.K. Traffic Patterns & Worst Bottlenecks

The INRIX U.K. Scorecard takes a micro look at traffic problems all
across the country - zooming in on the total hours spent in traffic, worst
day of the week for commuting and average speeds for the top 25 cities in the
U.K., along with hundreds of other details including the identification of
the worst traffic bottlenecks the country's drivers crawl through every day.
Unique patterns evolving out of U.K. traffic congestion include:

    -- Worst Traffic Day: Wednesday
    -- Worst Week Day Morning: Monday
    -- Worst Commuting Hour: Monday 8-9 AM
    -- Worst Evening Commute: Friday afternoon
    -- Best Week Day for Traffic: Friday
    -- Best Week Day Morning: Friday morning
    -- Best Week Day Commuting Hour: Friday 6-7 AM
    -- Best Week Day Afternoon: Monday

In analyzing and ranking the worst traffic bottlenecks across the
country, London, Manchester, Newcastle and Glasglow dominate the rankings in
commuting nightmares. However, the worst traffic bottleneck in the U.K. is a
1.24 mile stretch of the M5 heading toward Birmingham up to Junction 8 at the
M6, which was congested 63 hours a week in 2009/10, with an average speed
below 15 mph when congested. If you happen to be driving on the M5 into town
on a Friday from 17:00 to 18:00 you could conceivably ride your bike faster
than your car can take you to work, with an average speed of only 8 mph
during congested periods.

    According to the report, the Top 10 Worst U.K. Traffic Bottlenecks are:

    1.  Birmingham: The M5 heading toward Birmingham at the M6
    2.  London: The Blackwall Tunnel Approach at Blackwall Lane
    3.  London: Canterbury Way heading toward the Queen Elizabeth II Bridge
        at the M25
    4.  Newcastle upon Tyne: The A19 at the Tyne Tunnel North Approach
    5.  London: Canterbury Way heading toward Purfleet at the M25
    6.  London: The M25 headed toward Rickmansworth at the J19
    7.  Glasglow: The M8 heading toward Kingston Bridge at the J22
    8.  London: The M25 heading toward Dartford at the J18
    9.  Glasglow: The M8 heading toward Kingston Bridge at the J20
    10. Glasglow: The M8 heading toward Seaward at the J21

About the INRIX U.K. Traffic Scorecard

The INRIX U.K. Traffic Scorecard uniquely measures the country's traffic
congestion problem by going beyond the traditional limitations of road
sensors and statistical sampling techniques to evaluate real-time traffic on
almost every major metropolitan roadway in the U.K. It leverages INRIX's
Smart Driver Network, the first truly national traffic data collection
network which uses a revolutionary approach to collecting traffic
information. The network "crowd-sources" anonymous speed data from more than
3 million vehicles traveling the roads everyday including airport shuttles,
service delivery vans, lorries as well as consumer vehicles and mobile

Each data report from these GPS-equipped vehicles and devices includes
the speed, location and heading of a particular vehicle at a reported date
and time with commercial vehicles reporting every minute for up to 7 hours
per day. With the world's largest traffic network, INRIX generates the most
comprehensive and timely congestion analyses to date, covering the largest 25
metropolitan areas and all of the U.K. major highways, interstates and
limited access roads. INRIX then processes and blends other relevant
traffic-related data such as road sensors, traffic accident and incident data
and other resources to provide the most comprehensive and accurate traffic
information available.

Rankings and scorecards of the Most Congested U.K. Cities, along with an
executive summary of the report findings are now available at the INRIX U.K.
Traffic Scorecard website at The extensive data
powering the INRIX U.K. Traffic Scorecard is immediately available under
license for further analysis and review by government agencies and commercial
organizations including transportation industry organizations.

To learn more about the Scorecard's findings, you can also register for a
free webinar planned for November 10, 2010 at 11:00 a.m. GMT/6 a.m. ET where
INRIX Vice President of Public Sector Rick Schuman and GM of INRIX Europe
Hans Puvogel will provide a detailed review of key findings and INRIX traffic
data can be applied to improving transportation planning, traffic management
and measuring system performance.


INRIX(R) is a leading provider of traffic information with more than 100
customers and industry partners including the Ford Motor Company, MapQuest,
Microsoft, NAVIGON AG, TeleNav, I-95 Corridor Coalition, Tele Atlas, TTI,
deCarta, TCS, Telmap, ANWB and ADAC. INRIX's strategic partnerships across
Europe extends the delivery of the highest quality data and broadest coverage
available for personal navigation, mapping, telematics and other
location-based service applications in the car, online and on mobile devices.

INRIX Traffic Services leverage sophisticated statistical analysis
techniques, originally developed by Microsoft Research, to aggregate and
enhance traffic-related information from hundreds of public and private
sources, including traditional road sensors and the company's unique network
of more than 3 million GPS-enabled vehicles and mobile devices. INRIX
delivers highly accurate real-time and historical traffic information today
for 20 countries across North America and Europe. To experience the traffic
technology revolution behind the next generation of navigation and
location-based service applications, go to

(1) Travel Time Tax (T3): The methodology used to measure overall
congestion and to establish Urban Area T3 for each of the weekly 40 peak
period drive time hours enables the calculation of total U.K. Urban Area
congestion metrics, by hour, by morning and evening drive time, by day and

T3 expresses the average amount of extra time it takes to travel relative
to free-flow travel. A T3 of 30%, for example, indicates a 20-minute
free-flow journey will take 26 minutes during the peak travel time periods, a
6-minute (30%) journey time penalty. For each road segment, a T3 is
calculated for each hour of the week, using the formula T3= Reference Speed
(RS) minus Hourly Average Speed (HS)/RS. Note if HS > RS, T3 is set to 0%. T3
is a direct derivative of Travel Time Index, a common metric used in
congestion analyses.

(2) Overall Congestion vs. Travel Time Tax (T3): Overall congestion
quantifies and ranks the total congestion in a region. Larger regions tend to
have more roads and more locations where congestion occurs, hence more
overall congestion. Travel Time Tax (T3) equalizes all regions by dividing
out the difference in the size of each region's road network - giving a more
driver centric view of congestion. For example, London and Birmingham have
comparable T3 (25.0% vs. 24.3%) - this implies that an average commuter in
both cities faces similar delays. However, London has roughly 5 times more
people and more than 3 times more road miles of major highways. So at a
system level London has much more overall congestion while individuals in
both regions each face similar congestion levels.

An analogy is power consumption - the amount of power consumed in each
home is similar to the T3; while the amount of total power consumed in a
region is similar to overall congestion. Both measures - power used in each
home (T3) and power used overall in the region (overall congestion) - are
relevant and thus measured.

(3) Based on a uncongested commute of 30 minutes each way during peak
travel hours

Jim Bak of INRIX, +1-425-284-3825, jimb at; or Dan Gamble of Hotwire U.K., +44-(0)-20-7608-4634, dan.gamble at, for INRIX

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