Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 2 of 2
Full-Text Articles in Engineering
Raised-Aggregate, Lane-Delineation Stripe, Jerry G. Pigman, Kenneth R. Agent
Raised-Aggregate, Lane-Delineation Stripe, Jerry G. Pigman, Kenneth R. Agent
Kentucky Transportation Center Research Report
Experimental raised-aggregate (1/2 inch (13 mm) to 1 inch (25 mm)) traffic stripes were installed on approximately 0.4 mile (644 m) of US 60 just north of the intersection with US 421 in Franklin County. Installation was during June 1974. Aggregate stripes were painted yellow and used as skip lines inside the continuous channelization stripes to indicate no crossing into the two-way, left-turn lane except for turning movements.
Observations indicated that the raised-aggregate stripes had good durability after being exposed to 2 years of wear. During dry, nighttime conditions, the paint stripes were slightly more effective than the aggregate stripes; …
Evaluation Of Thermoplastic Pavement-Striping Materials (Louisville And Jefferson County), Jerry G. Pigman, Kenneth R. Agent
Evaluation Of Thermoplastic Pavement-Striping Materials (Louisville And Jefferson County), Jerry G. Pigman, Kenneth R. Agent
Kentucky Transportation Center Research Report
Approximately 1,406,100 linear feet (428,579 m) of hot-sprayed thermoplastic stripe was applied to roadways in Louisville and Jefferson County in the summer of 1973. Visual observations of appearance, durability, and night visibility were conducted according to ASTM D 713-69, the standard method for conducting road service tests on traffic paint. Attempts to conduct photometer measurements of the thermoplastic striping were unsuccessful. Visual observations made during rainy, nighttime conditions were also unsuccessful because very little difference was noticeable among the various sections.
The evaluation showed that the thermoplastic stripes performed considerably better on bituminous concrete pavements than on portland cement concrete …