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Crash Strategic Road Location

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Crash Location Strategic Road is a [[dimension]] identifying the location of a [[crash]] on the [[strategic road]] network.
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#REDIRECT [[Crash Location Strategic Road]]
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This dimension was developed in partnership with the [[Highways Agency]] for England, and also with Transport Scotland and GoSafe Wales. All crashes have been assigned a Yes or No value based on detailed information supplied by these agencies.
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Any [[report]] which requires a [[filter]] to '''exclude''' strategic roads is most easily designed using the [[Crash on Strategic Road]] dimension, which provides a [[boolean]] value indicating whether or not each crash took place on the strategic road network.
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It is possible to combine this dimension with dimensions based on the [[Geography hierarchy]], in the same report.  For instance, this apprach would allow all crashes on a particular strategic route within a certain county to be identified with ease.
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The Strategic Road hierarchy is organised into multiple levels.  each level is explained in more detail in the sections below.
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== Region ==
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This level contains the [[Highways Agency]] Regions of England, with Scotland and Wales shown separately.
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HA Regions should not to be confused with Government Office Regions, which unlike HA Regions are based on local authority boundaries.  These are covered by the [[Geography hierarchy]].
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== Area ==
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This level contains the HA Areas within each region.
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For details of the extent of each HA Region and Area, refer to this page of the [http://www.highways.gov.uk/aboutus/143.aspx HA website]. In Scotland and Wales, police force areas have been used to categorise crash locations at this level.
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== Route ==
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This level contains each distinct contiguous stretch of strategic road with the same [[road number]] and [[road class]] within a single area.
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== Link ==
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This level splits each route up into sections.  Each link begins and ends at a specific point known as a node.  Most (although not all) nodes coincide with junctions with other important routes.
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Current revision as of 16:44, 18 November 2013

  1. REDIRECT Crash Location Strategic Road
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