Category Archives: uncategorized

More notes on road design standards (1)

Many countries publish “standards“, notes, advice and requirements related to the geometric design of roads. But as I have argued before (see for example here) there are too many of these standards. What makes life more difficult for engineers is … Continue reading

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Chile’s Road design manual updated

Chile’s Roads Department, part of the Ministry of Public Works, has just updated its Manual de Carreteras. The documents can  be downloaded free of charge from http://mc.mop.gov.cl/Login.aspx (but you need to register and log in).

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60 mile/hour speed limit?

Around four years ago I wrote that, according to an article in the UK’s Daily Mail (see here), the British government had plans to increase the speed limit on motorways from 70 mile/hr to 80 mile/hr (from 112 km/hr to … Continue reading

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“Findability” and road design standards

I have just published some notes on “side friction”, which you can download (for example) from Academia. The document has a “discussion” section which in part looks at how current design standards fail their users. Examples of these failures include … Continue reading

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Road design and older drivers

There used to be a saying that road designs were a function of the road, the vehicle and the driver. It now appears that there are different types of driver, and some standards are appearing which suggest different values for … Continue reading

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ARRB resources

The ARRB is the Australian Road Research Board. Its website says that it “exists to serve the research needs of its Members, and maintain its reputation as a national interest, applied research organisation. Hence, our vision is born: to deliver … Continue reading

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London – Doubtful project development procedures

On the 7th April 2017 the Independent newspaper reported on what it described as Dame Margaret Hodge’s “damning” independent review of the London Garden Bridge project. This project, as London’s official website says: “….is a proposed footbridge and public garden … Continue reading

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Road design standards

A new version of the “Road design standards” document has just been made available. It covers 79 countries, 7 multi-country standards and 3 special topics. For more details visit the Road Design Standards website.

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Ireland and document libraries

Ireland’s “Transport Infrastructure Ireland (TII) “is responsible for managing and improving the country’s national road and light rail networks”. TII has just (June 2016) launched a publications website, which offers access to documents such as standard cross-sections. The country’s Department … Continue reading

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New urban road cross-sections tool

Abu Dhabi’s Urban Planning Council has made available online a very useful tool for planning the cross-sections of urban roads. The Abu Dhabi Urban Street and Utility Design Tool is available in French, English and Arabic.

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