Re: Why Wooden Sleepers are better. Was [NSW] CityRail Delays Friday

[Andrew McNamara <andrewm@connect.com.au>]

Matthew Geier wrote:

>  Now what is more environmentally friendly, a soft wood treated with
> copper-cynaide, a hard-wood from a tree that took 100 years to grow,
> or a concrete sleeper made out of 'dirt' dug up out of the ground.
> 
>  Given how much longer the concrete ones last, even with all the mining
> involved, they probably come out ahead in the 'greenie' stakes!.

And concrete can be recycled. 

Whatever the case, it has to be better than a 6 lane freeway.