On 27/05/2017 10:06 AM, Mal Rowe wrote:
> With the move back to a bitumen top to the road surface, girder

> (grooved) rail became necessary - the bitumen otherwise migrates into

> the groove.

> That technique became the standard Melbourne approach from early 2008

> - see: Swanston-at-Victoria_14Jan2008.jpg


That link should have been: http://tdu.to/57406.msg