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ST950 Plus+ User Manual
ST950 Plus+ User Manual
Page 102 of 176
667/HE/53000/000
Issue 2
Unrestricted
Checking Site Suitability
The controller outer case is installed to suit local conditions, but subject to the following
limitations:
(i) The position of the controller is as shown on the relevant site-to-scale drawing, (STS)
(ii) No part of the controller is less than 457mm (18 inches) from the kerbside unless agreed with
the customer.
When it is necessary to site the controller less than 2 metres from the outer edge of the kerb, the
access doors and panels should not open over or toward the carriageway. Where no pedestrian
guard rails are fitted, then a clearance of at least 600mm shall be left between the outer case and
kerb edge so that guard rails may be installed at a later date without the need to disturb the
controller installation.
(iii) The controller door(s) should be easily accessible and not extend over the roadway or obstruct
the footpath when opened. The door describes an arc of approx. 710mm radius from the left-
hand front corner. Note that the controller door swings open through 180
.
(iv) Any person having control over the junction, whether manual control or stimulating some
other system interface to test the controller's response, MUST have a good view of the
intersection.
(v) When the controller is to be located on unmade ground (e.g. a grass verge) it is recommended
that paving slabs or a concrete standing be provided at ground level under all access doors and
panels. The hard standing shall extend a minimum distance of 900mm away from the main doors,
extending the full width of the case, and at least 800mm away from the side of the case with a
flap, again extending the full width of that side.
Customers may specify particular requirements.
The door of the controller must have ground clearance of at least 30mm over its whole opening
arc.