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<p>Estimates of the amount of working time lost because of traffic jams are not held
centrally.</p><p> </p><p>However, the Department does produce statistics on congestion
on locally managed roads by monitoring average speeds on these roads during the weekday
morning peak, defined as 7am to 10am. Average speeds are measured in both directions
of travel.</p><p> </p><p>The Department also produces statistics on the reliability
of journeys on the strategic road network by monitoring the percentage of journeys
that are ‘on time’.</p><p> </p><p>These statistics and supporting information can
be found at:</p><p><a target="_blank">https://www.gov.uk/government/collections/road-congestion-and-reliability-statistics</a></p><p>
</p><p>In addition, estimates of modelled total lost time, defined as the additional
time spent travelling compared to that in free flow conditions (but not necessarily
held up in traffic jams), are available through the Department’s National Transport
Model (NTM). The NTM only models certain years and is mostly used for forecasting
future years. However, the model forecasted that in 2010 a total of 41Million Working
Days were lost in England on all roads.</p><p> </p><p>Although national traffic levels
have been broadly static for the last ten years, this masks increasing traffic on
motorways which reached a record high of 64.5 billion miles in the year ending September
2014. Given the latest trends and available evidence, it is reasonable to plan for
growing levels of traffic, particularly on the Strategic Road Network.</p><p> </p><p>Therefore,
we have recently announced the biggest road investment in decades, with plans to triple
levels of spending by the end of the decade and add over 1,300 new lane miles through
schemes being delivered over the next parliament on motorways and trunk roads, tackling
congestion and fixing some of the most notorious and longstanding problem areas on
the network.</p><p> </p><p> </p>
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