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Design criteria for all haul roads
Foster Yeoman > Glensanda Quarry, Argyll > 01631 730441
transport – site design: 11
award
winner
Foster Yeoman has implemented a package of
improvements that has transformed its record of
workplace transport at this famous quarry near Oban.
In particular, comprehensive design criteria have been
developed for haul roads, that include:
• creation of bunding
• use of mobile floodlights and snow poles with
reflective panels
• installation of colour-coded reflective lights to
indicate the edges of the roads and junctions
• purchase of a grader to spread aggregate onto snow and remove loose material on corners
• investment in drainage and culverts alongside roads
• creation of roundabouts on major junctions.
Amongst the other major projects on site are improvements to the visibility and maintenance checks on
Land Rovers and competency tests for all Land Rover drivers.
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Traffic management system
Tarmac Central > Bestwood, Nottinghamshire > 01777 703891
>
Bestwood, to the north of Nottingham, was a pilot for Tarmac Central in a drive to improve traffic
management and pedestrian safety. A review highlighted a general problem with a poorly positioned
single weighbridge, which made a one-way traffic system impracticable.
The answer lay in relocation of the weighbridge onto a newly-surfaced road, together with installation of
a second weighbridge – one handles incoming traffic and the other outgoing. Both are controlled from one
office, are at a height that avoids drivers leaving their cabs, and afford the weighbridge clerk a good view
of proceedings. The quarry road has been asphalted and a special area provided for sheeting with platform
and roller device to facilitate the process. A defined visitors’ car park and segregated pedestrian walkways
with lighting and crossing points complete the new layout.
Entry awareness by photo-electric beam
Tarmac Northern > Concrete & Mortar, Yorkshire > 01423 796800
One-man depot operators are often unaware that a truck mixer (or visitor) has entered the depot if, at the
time, the operator is in a loading shovel, filling storage bins, out of sight, and without the benefit of being
able to hear the arrival.
Tarmac Northern’s Concrete & Mortar, Yorkshire, have therefore set up a photoelectric beam on one gate
post and a reflector on the other. When the beam is interrupted, a time switch is activated which operates
a flashing beacon for a preset period. The beacon is placed within vision of the storage bins area, thus
alerting the depot operator.