Saturday, August 9, 2008

Star or delta

At the intersection of two streets there is sometimes a splayed corner where the corner property has a diagonal section of fence fronting the intersection. There are two techniques sometimes used to fit a footpath to this situation rather than just have a 90 degree corner that pedestrians may not follow.

The first photo shows a "star" arrangement which is cheaper because it uses less concrete, but it requires pedestrians to deviate from the direct walking route if they are going straight ahead. This was a poor choice for the intersection of Epping Road and Balaclava Road where there is a large splay and a high pedestrian volume heading towards Macquarie University. This location needs attention.

The second photo shows a small "delta" arrangement which covers all possible movement choices. It was a bit of an extravagence to be installed in a cull de sac, but was probably built by the property developer as this is a relatively recent estate. The delta arrangement would probably have been better used at the intersection in the first photo.

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