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<p>The original safety assessment of all lane running included the safety of a vehicle
stopping in a running lane during peak and off-peak periods. It also identified a
range of measures, such as the provision of traffic management technology and emergency
areas, designed to ensure overall all lane running safety levels would be at least
as safe as those of a traditional motorway with a hard shoulder.</p><p> </p><p>The
smart motorway schemes between junctions J5-7 and 23-27 of the M25 were the first
to be designed to the all lane running standard, and were completed in 2014. The performance
of both schemes was monitored and reports published after one, two and three years
of operation which included an assessment of safety and performance data.</p><p> </p><p>M25
3 year evaluation reports:</p><p> </p><p>https://www.gov.uk/government/publications/m25-junction-5-to-7-third-year-evaluation-report</p><p>
</p><p>https://www.gov.uk/government/publications/m25-junction-23-to-27-third-year-evaluation-report</p><p>
</p><p>The review shows that the all lane running sections are performing well and
in line with expectations; successfully increasing capacity and improving journeys
for motorists. These reviews found that the M25 schemes delivered an overall 27% safety
improvement.</p><p> </p>
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