Specifications

Siemens Mobility, Traffic Solutions

Sopers Lane, Poole, Dorset

BH17 7ER

Version 10 Page 63 of 120 Status Issued

Last Editor harry.smyth Date 03 November 2014

Document

Name

GENERAL HANDBOOK FOR HEIMDALL

DETECTORS

Doc. No.

667/HB/31900/000

5.6.4.2 Detector Height

The detector may be mounted at any height between 3.3 and 4m.

5.6.4.3 Detector Angle

The initial installation angle will change depending on the installation height and road

surface angle. However, the detector is aimed towards oncoming pedestrians, at the

centre line of the on crossing area and towards the far side of the carriageway, as shown

in Figure 24 below.

As a starting point the mounting angle may be pre-set to:

 25 degrees from horizontal for a 12 m crossing

Figure 23 : Heimdall set to 25 degrees from horizontal

5.6.4.4 Detector Alignment - default

The detector uses a movement detection algorithm. Thus, the detector is aimed towards

oncoming pedestrians, at the centre line of the on crossing area and towards the far side

of the carriageway, as shown in Figure 24 below.

Arrow pointing

to 25 degrees

(One Large &

Two Small

Notches)