Part 2 -- Maintenance Challenges and Safety Issues - Influence of Exposure Duration on the Effectiveness of Changeable-Message Signs in Controlling Vehicle Speeds at Work Zones
1998
Article (Journal)
English
BKL: | 55.00 Technik der Verkehrsmittel, Verkehrswesen: Allgemeines |
Transportation Research Record | 1998
|Portable Changeable Message Signs at Work Zones
NTIS | 1984
|