Research Report 400 Minimising traffic delays during resealing

NZ Transport explores approaches to construct a chip seal and open to unrestricted traffic

Research report 400 Minimising traffic delays during resealing

Published: Apr 2010

This research demonstrated that:

• racked-in seals can handle the stress of high-volume traffic

• racked-in seals can be constructed in an eight-hour working period including any sweeping and road marking

• closely controlled chip application rates result in minimal loose chip on surface

• minimal loose chip results in minimal chip being flicked by vehicle tyres

• speed restrictions can be lifted to 50–70km/h at the completion of the line marking

• unrestricted traffic can be placed on the seal the morning after resealing.

The requirement for a newly sealed chip seal road to be opened to traffic speeds of at least 70km/h for peak evening traffic could be included in the construction specifications. This would assist in minimising motorists’ frustration at the traffic delays caused by road sealing.

Further information

This entry was posted in General News, News, Pavement Pres. Apps., Studies / Reports, Treatments. Bookmark the permalink.

Comments are closed.