User's Guide

c. Step 2/5: Installation mode

Screenshot 5: installation mode

: When measuring on a narrow road, where traffic moves in alternate directions on one and the

same traffic lane (roadworks with temporary traffic lights, residential area with a chicane, single lane

bridge …), use the indicated checkbox.

: detection direction (detection of vehicles that are moving towards and/or moving away from the

radar, in 1 or 2 directions, see p. 12, as well as the note below).

Bidirectional measurements – Important note

The TMS-SA enables, in certain traffic conditions, measurements to be made on two lanes in opposite

directions. This is only possible in the following conditions:

✓ light traffic flow,

✓ distance between the post and the centre of the road between 2 and 9 m,

✓ the direction moving away must be closest to the radar

In bidirectional mode, the accuracy of the counting and classification of the measurements decreases. If

two vehicles cross in the radar detection lobe, the latter can validate:

- the measurements of the two vehicles,

- the measurement of one of the two vehicles,

- none of the measurements,

- a measurement whose length is the sum of the two lengths measured.

It is impossible to predict the behaviour of the radar.