Lean Tools Save 13,500 Days of User Delays

We have trained our teams in applying lean tools and techniques developed in the automotive sector. This was put to good use on the recent M621 safety barrier scheme when our teams using collaborative programme planning to reduce programme time and whole life maintenance need.

By utilising solutions to address the particular challenges on this project, we shortened the programme duration by an estimated 8 weeks. This had a significant positive effect on the community affected by the works. With the existing central reserve barrier removed and drainage and civils work ongoing overnight, the road had to be returned to full capacity each day.

However, given the ongoing works, a temporary 30mph speed restriction needed to be put in place. With an average daily traffic flow past the scheme of 87,320 vehicles, reducing the programme duration by 8 weeks has resulted in 4,889,920 road users journeys not having to travel through roadworks with a 30mph speed restriction. This has in turn saved around 325,994 hours of road user delays, or 13,500 days of road users delays eliminated.

In addition, the installation of concrete barrier instead of steel means no accident damage repairs through the life of the asset, with the added disruption, cost and road worker safety challenges that this brings. The M621 central reserve barrier requires around 12 barrier repairs each year on average, so the new barrier solution will eliminate the need for 12 repairs each year with the associated reduction in traffic management (which reduces network capacity), road workers working on the network (reducing risk for road workers), and use of raw steel materials (environmental benefits).

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Entry submitted by A-one+ Integrated Highway Services

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