Job title

Main client

Our client

Completion

M11 J8 Improvements—Stansted Airport

Highways England

Interserve, Collaborative Delivery Framework

May 2017

Project brief

Plane and inlay inbound and out bound slip roads of the M11, Junction 8. A

total of 4.5km of resurfacing with construction depths varying from 40mm to

200mm in up to 3 layers. Minimising disruption to road users was a key driver

for this project given its prominent location for access to and from Stansted

Airport.

Delivery

• Works were completed over 3 weekends, starting at 21:00 on Friday nights

and working continuously until 06:00 on Monday morning

• 12500t in 11 surfacing shifts and only 6 planing shifts

• Use of 8m wide paver eliminated 4kms of joints between lanes 1 and 2,

Whole life cost benefits through reduced joint failures

• Use of asphalt feeder – provided improved rideability through continuous

paving

• Using walking floor lorries, the number of lorry deliveries to site were

reduced by 40 less loads.

Achievements

• An average of 1000t per shift, per gang

• 73% reduction of programme compared to conventional industry outputs

• Zero accidents

• Right first time

• Continuous learning meant improvements after each weekend allowing for the original four weekend programme to be further reduced to three

“Through collaboration we were

able to achieve a 73%

programme reduction when

compared to conventional plane

and inlay outputs ”

Craig Germeney, Highways Director,

Toppesfield

Case study

M11 Junction 8

8m wide paver eliminated

4kms of joints by laying two

lane widths in one pass

Material feeder to allow continuous

paving

1450t of surface course was laid using

the material feeder