Remarks on the Present System of Road Making: With Observations, Deduced from Practice and Experience, With a View to a Revision of the Existing Laws, and the Introduction of Improvement in the Method of Making, Repairing, and Preserving Roads, and Defending the Road Funds from Misapplication. Seventh Edition, Carefully Revised, With an Appendix, and Report from the Select Committee of the House of Commons, June 1823, with Extracts from the EvidenceMcAdam, John Loudon
History
Remarks on the Present System of Road Making: With Observations, Deduced from Practice and Experience, With a View to a Revision of the Existing Laws, and the Introduction of Improvement in the Method of Making, Repairing, and Preserving Roads, and Defending the Road Funds from Misapplication. Seventh Edition, Carefully Revised, With an Appendix, and Report from the Select Committee of the House of Commons, June 1823, with Extracts from the Evidence
McAdam, John Loudon
Macadam roads; Roads -- Great Britain
The roads which have been formed by direction of the Parliamentary
Commissioners for the Holyhead road, and under your management, having
been described to this Committee as being very perfect, will you have
the goodness to state your opinion as to the present condition of the
different turnpike roads of the kingdom, and what improvements you would
recommend in their direction and management. In the first place, state
to the Committee in what respect you consider the roads of the kingdom
at present to be defective, either in their formation or management?—
With regard to the roads in England and Wales, they are in general very
defective, both as to their direction and inclinations, they are
frequently carried over hills, which might be avoided by passing along
the adjacent valleys; at present the inclinations are inconveniently
steep, and long continued. I might instance many principal lines, over
which I have had frequent occasion to travel: I shall select the great
road from Holyhead, through North Wales to Shrewsbury; and from thence
by Birmingham and Coventry to London. On the Welsh portion of it, those
parts which have been improved under the direction of the Parliamentary
Commissioners for the Holyhead road, the inclinations were formerly (in
many instances) as much as one in six, seven, eight, nine, and ten, the
width at the same time frequently not exceeding twelve feet, without
protection on the lower side, and the roadway itself of improper
construction. The improvements which have lately been made in North
Wales, I beg leave to submit as models for roads through hilly
countries, although these improvements have been made through the most
difficult and precipitous district of that country, the longitudinal
inclinations are in general less than one in thirty; in one instance,
for a considerable distance, there was no avoiding one in twenty-two,
and in another, for about two hundred yards, one in seventeen; but in
these two cases, the surface of the roadway being made peculiarly smooth
and hard, no inconvenience is experienced by wheeled carriages. On flat
ground, the breadth of the roadway is thirty-two feet, where there is
side cutting not exceeding three feet, the breadth is twenty-eight, and
along any steep ground and precipices, it is twenty-two, all clear
within the fences; the sides are protected by stone walls, breast and
retaining walls and parapets; great pains have been bestowed on the
cross drains, also the draining the ground, and likewise in constructing
firm and substantial foundations for the metalled part of the roadway.
From Shrewsbury upwards, the road at present is encumbered with many
hills, all of which might be avoided, or much improved. There is a very
long one between Shrewsbury and Heygate, several between that point and
Shiffnal, two between Shiffnal and Wolverhampton, one between
Wolverhampton and Birmingham, viz. at Wednesbury, &c. Maiden Hill,
Public-domain text, read in full here on John Shaqi.
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