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Old Posted May 29, 2018, 9:48 PM
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240glt 240glt is offline
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Join Date: Sep 2006
Location: YEG -> -> -> Nelson BC
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Originally Posted by milomilo View Post

My comment was primarily pointed at the false notion that trash filled grass between lanes is 'green space'. It isn't, it is space taken away from actual green space and ugly. However, you are correct it is probably marginally safer (I don't have any data either way), so is a fine choice in places where land is cheap and ugly like the prairies. However in places where land is expensive, hard to build on and precious, wide medians are a waste.
I think it comes down to traffic volumes ultimately. I remember watching a study a while ago about highway safety and the safety benefits of an un-divided vs. divided vs. separated lanes and the separated highway was much safer than even a divided highway. So if the traffic volumes warrant a twinned highway then you might as well separate it where you can.
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