The A4232, which is known either as the Peripheral Distributor Road (PDR) (Welsh: Ffordd Ddosbarthu Ymylol) or the Cardiff Link Road (Welsh: Ffordd Gyswllt Caerdydd), is a distributor road in Cardiff, the capital of Wales.
The first section of the PDR to be completed was the Southern Way Link Road between Newport Road (A4161 road) and the Eastern Avenue (A48 road) in 1978.rem When fully completed, the road will form part of the Cardiffring-road system. The PDR runs west, south and east of Cardiff, with the M4 between junction 30 and junction 33 completing the northern section. The PDR is dual carriageway for its entire length except for the East Moors Viaduct, which is a single carriageway.
Image 1Vehicles experiencing a breakdown or an emergency can stop in the emergency lane; these lanes may themselves present risks to traffic. (from Road traffic safety)
Image 4The Dutch Reach - Use far hand on handle when opening to avoid dooring cyclists or injuries to exiting drivers and passengers. (from Road traffic safety)
Image 5According to Eurostat, there is almost a linear proportion between the total number of passenger-km driven by car and road fatalities. (from Road traffic safety)
Image 7The schedule of maximum tolls allowed on the Woodstock to Rollright Turnpike Trust on the Great Road to Worcester in 1751 (from History of road transport)
Image 21According to Eurostat and European Railway Agency, in European railway mode of transport, there is a fatality risk for passengers and occupants 28 times lower compared with car usage. Based on data by EU-27 member nations, 2008–2010. (from Road traffic safety)
Image 23Car fatalities per pax-km vs. car usage per pax-day; in Europe. It seems, at least in these European countries, that car fatalities per person-km have no strong correlation with massification of car usage. The average car usage in these countries is around 30km per person-day with varying number of fatalities ratios. These differences might be related with different cultural approaches to traffic codes, or more safety measures implemented on such countries. (from Road traffic safety)
Image 30John Metcalf, also known as Blind Jack of Knaresborough. Drawn by J R Smith in The Life of John Metcalf published 1801. (from History of road transport)
Image 32The Great North Road near Highgate on the approach to London before turnpiking. The highway was deeply rutted and spread onto adjoining land. (from History of road transport)
Image 33Different layers of road including asphalt layer. The total thickness of a pavement can be measured using granular base equivalency (from Road surface)
Image 42Sacrifices to the Modern Moloch, a 1923 cartoon published in St. Louis Star, criticizing the apparent acceptance by society of increasing automobile-related fatalities (from Road traffic safety)
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