GPS controlled graders deliver a smooth surface

Birse has used two machine control systems on the A14 project in the UK, one GPS-controlled to provide excavators with a +/-30mm accuracy and a second system which used a Trimble UTS as control on a grader to achieve +/- 5mm - well within the Highway Agency's sub-base tolerance of +10/-30mm. This meant that when it came to the asphalt surface, Birse agreed a thickness and Lafarge, the blacktop contractor, let the paving machine run instead of the operators constantly making manual adjustments. At the end of
July 12, 2012 Read time: 1 min
1486 Birse has used two machine control systems on the A14 project in the UK, one GPS-controlled to provide excavators with a +/-30mm accuracy and a second system which used a 2122 Trimble UTS as control on a grader to achieve +/- 5mm - well within the Highway Agency's sub-base tolerance of +10/-30mm. This meant that when it came to the asphalt surface, Birse agreed a thickness and 3180 Lafarge, the blacktop contractor, let the paving machine run instead of the operators constantly making manual adjustments. At the end of the job, one of Birse's engineers looked at a 1km section of type 1 sub-base in detail. The average surface deviation on this tested carriageway was zero and local users of the A14 have even been phoning and emailing their approval of the smooth finish.
Connected Construction

For more information on companies in this article

Related Content

  • Crash barriers aid vehicle protection, road safety
    February 8, 2012
    Barrier and crash cushion systems can make a great deal of difference to roadway safety, with new technology offering major benefits to road users. In North America and Western Europe, concrete centre line dividers are being used for many major highways as these provide a durable solution for preventing cross-over accidents with large vehicles such as heavy trucks. It is worth noting too that other countries are now adopting concrete barriers for highway centre line dividers also, with this system being use
    Read More
  • Workzones benefit from new mobile speed enforcement technology
    April 11, 2012
    A variety of new technology for temporary speed zones during major highway projects across the globe is about to hit the market, while other proven systems remain in demand. Guy Woodford reports The D-Cam P is one of four new mobile speed reading products for temporary speed zones being launched this month by Truvelo. Deployable solely as a speed camera or at a red light intersection to monitor red light offences, the D-Cam P can also act as a speed camera on the green and amber light phases. The machin
    Read More
  • Workzones benefit from new mobile speed enforcement technology
    April 10, 2012
    A variety of new technology for temporary speed zones during major highway projects across the globe is about to hit the market, while other proven systems remain in demand. Guy Woodford reports. The D-Cam P is one of four new mobile speed reading products for temporary speed zones being launched this month by Truvelo. Deployable solely as a speed camera or at a red light intersection to monitor red light offences, the D-Cam P can also act as a speed camera on the green and amber light phases. The machine d
    Read More
  • Safer cone collection with X-Cone among the latest safety innovations
    August 30, 2017
    X-Cone is a new traffic cone management system offering a higher level of safety for workers and maximum efficiency for contractors. Austrian-made X-Cone is a truck-mounted system that can manage the setting out and collection of cones from the flatbed of any 3.5tonne vehicle. It does not matter if the cones are straight or laying on the road, the X-cone can still manage the work quickly, safely and reliably, according to the manufacturer. For setting out standard cones, the driver can decide the distance b
    Read More

Highlighted Content