What are those black lines in the middle of the road?

[Property Meister]

Not burnout marks,

but those snake like tar marks that actually are slightly elevated, and what are they for?

friends mt eliza road has them absolutely everywhere,

can't imagine them actually reducing speeding

 

[Ergophobia]

the ones parrallel to the road?

Ive always thought they were old white lines they covered over.

 

[Rooster]

They are road repairs.

Patching of the cracks in the road.

Rooster

 

[Property Meister]

something like this

http://maps.google.com/maps?q=mount...pPnl9W0-drkXuL2updaluA&cbp=12,346.59,,0,23.21

but my friends place (which I cant remember the address) they are a black colour and stand out from 200m away, and they are absolutely all over the road

or like this,

http://maps.google.com/maps?q=30+Da...y7-uNQZZOQJ77RN-SB6h6Q&cbp=12,236.34,,0,24.32

 

[Aaron_C]

That is tar - which is used to fill cracks in the concrete.

 

[Propertunity]

That is tar - which is used to fill cracks in the concrete.

^ ^ what he said.

 

[BMan]

That is tar - which is used to fill cracks in the Bitumen.

fixed it for you

 

[wylie]

... look like stretch marks to me

 

[Ocean Architect]

When bitumen is damaged by expansion/shrinking/sinking etc and cracks, the edges of the cracks are vulnerable to wear from traffic. If you don't fill them up with something, they'll continue to wear down until you compromise the road, water seeps through, and you get potholes. Which is also why I despise bitumen carparks - turning circle + small rocks = potholes galore

 

[Aaron_C]

fixed it for you

Heh thanks