Contrast Striper
- Equipment
- Pavements
Innovation
MoDOT staff was looking for a way to apply contrast markings in less time, while increasing safety and saving money. An existing striper paint gun carriage was modified to place three independent lines simultaneously - two black and one white line. This process produces a stripe with a contrast line similar to applying tape.
An existing striper paint gun carriage was modified to place three independent lines simultaneously - two black and one white line. This process produces a stripe with a contrast line similar to applying tape.
Parts for modification: $150-$250
Labor: 6-8 hours
Getting the solenoids to fire nearly simultaneously required minute adjustments to the spring assemblies inside the solenoids. Smaller tips were used for the black paint to minimize the overspray.
Benefit and Implementation
This process allows MoDOT staff to apply contrast markings in one pass along stretches of roadway where daytime visibility is a concern. This method is much cheaper than any other way of producing a contrast stripe. The impact to the public is reduced significantly by reducing a conventional two-pass operations to a one-pass operation.
