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<p>Cost-benefit analysis of the individual upgrades has not been made. However, an
assessment of the wider package of enhancements on the East Coast Mainline (ECML),
of which the improvements at King’s Cross and Werrington and the power supply upgrades
are contributary components, was conducted in 2018. This presented a benefit-cost
ratio (BCR) of 3.6. This BCR will be reappraised once the content of the new ECML
timetable, planned for introduction in May 2022, has been finalised.</p><p> </p><p>This
major timetable uplift will provide faster journey times across the route, with improvements
of 15 minutes between London and Edinburgh, and 5 minutes between London and Leeds.</p><p>
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