Category Archives: roads

Hot weather stops trains

Hot weather in southern England recently forced the cancellation of a number of train services. Basically it seems the track designers did not design the tracks to take the temperatures which have been experienced this year, leading to greater than … Continue reading

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NMT and a new transport user hierarchy

Not exactly new …. In a previous post (here) I wrote: Non-motorised transport (NMT) is as much a part of road transport systems in countries such as the UK and Holland as it is  in countries such as Uganda and … Continue reading

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NMT in developing and developed countries

There is a page on the Internet (here) which lists different modes of transport, grouped under the headings of: Intermediate Means of Transport (IMT) Non-Motorised Transport Modes (NMT) The two lists partly contain the same modes, so they could be … Continue reading

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Non-Motorised Transport – “bring back the old”

Photo: Dr. Placide Badji A lot of the discussion about road transport concentrates on the problems of road space for cars and trucks. It is probably fair to say that- even in developing countries – transport plans firstly look to … Continue reading

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Level of service – a concept past its sell by date?

In August 2014 the Streetsblog website published an article (here) which began: Ding, dong…LOS is dead. At least as far as the state of California is concerned.

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Simplification of standards (3)

Other complications with standards Layout One problem with some standards is not the format – pdf or paper for example -but that you have to search backwards and forwards through many pages of the document before you find all the … Continue reading

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Simplification of standards (2)

Suppose someone does manage to list the features which influence- or are influenced by – a geometric parameter (see previous post here). This information by itself is not enough to allow anyone to simplify things. We would also need to … Continue reading

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Abu Dhabi streets in new “global street design guide”

The US organisation NACTO is preparing a “Global Street Design Guide (GSDG)”. The NACTO project page (see here) says that this: “… will be a timely resource that will set a global baseline for designing streets and public spaces while … Continue reading

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Road geometric design – control lines

A control line is an imaginary line along a design for a new road. For example, (Ref. 2133)  says that “The horizontal and vertical elements of a road are described in terms of control lines. Control lines are lines mathematically … Continue reading

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Nepal road standards

Nepal has had road design manuals for many years. The first one I have seen reference to is the Manual of Highway Design and Construction of 1960. Various documents have been issued by a number of different government bodies since … Continue reading

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