Found 32 documents.

A stop sign for use in the dark

Publication/report Report 1969-2
Published: 1969 (SWOV): Griep, D.J. research psychologist
The present official stop sign for use at night - a red light or a red light in combination with an illuminated white vat-type sign - are not sufficiently for road users. A new stop sign has...

Alcohol and road safety

Publication/report Report 1969-1
Published: 1969 (SWOV): Griep, D.J.

Annual report for 1968

Publication/report
Published: 1969 (SWOV): SWOV

Gevarendriehoeken; Functie, vormgeving en toepassing

Publication/report Rapport 1969-8
Published: 1969 (SWOV): Griep, drs. D.J.; Flury, ir. F.C.

Measuring devices and methods for determining blood alcohol concentration

Publication/report Publication 1969-2
Published: 1969 (SWOV): Noordzij, P.C.

Retroflecterende kentekenplaten en alternatieve middelen; Functie, vormgeving en toepassing

Publication/report Rapport 1969-5
Published: 1969 (SWOV): Griep, drs. D.J.; Thoënes, ir. E.
This report contains the results of an inquiry into the design of number plates made of reflectorized materials. The possibilities of identification especially by means of photography were taken into...