They are constucted from PVC thikness 2mm with protection anti-UV and they are placed in the street edges in order their limits become perceptible at the nightly driving.

They are also placed in places of waists of paving and in general in places of dangerous points. When they exists safety barriers are placed behind them.

The minimal distance between them is 60cm, when they are placed in straight parts. The indicator poles that are fixed in the ground and are made useless after the collision the are charactirized type D1.

They are constituded from post triangular cross-section (30^ο/75^ο/75^ο), lenght ≥150cm. Part ≥50cm, is fixed with concrete in the ground, while part 100cm it remains obvious.

The posts up part it is covered with black band width 25cm, on that are stuck on reflective elements from membrane type ΙΙ dimansion HxW = 120mm x 80mm

The colour of reflective elements, that appears in the right side of street, is red and in the left side is white .

They are constructed accordingly the provisional specification ΥΠΕΧΩΔΕΔ3γ/0/14/7-Ω/1991 and fill the model ΕΝ12889-1:2001