Hi everyone,
It would seem from the few responses on this topic so far that the D.O.T. (I.O.M.) installed speed humps are none too popular!
I for one detest them for various reasons e.g. safety, pollution, the damage they cause to cars etc. (the links at the bottom of this post go into detail show examples and good reasons against their use).
My own car is 95 mm at the front, it is not modified and as bought from the factory being purchased before all the humps were installed. On the vast majority of speed humps the rubber lip on the front catches on them, giving a nice scraping noise as you go over them and this is at a speed slower than walking pace! Some I cannot even get my car over (as my car will ground out) e.g. Strang Road (between the Spar shop and Ballanawin Estate on which emergency vehicles use), the Estate by the Highwayman in Peel, Old Laxy Hill, Cronk y Berry Estate etc....
My father has an old MGB roadster that he has to drive with two wheels on the pavement to get it out of his estate as the speed hump at the entrance (never got why they are placed at the entrance of the estates) is far too tall and guess what! If he did not do this it would ground out and do severe damage to the car!
Now this is where things get interesting!
From Isle of Man Newspapers (link below) "Mr Anderson said his department followed best practice guidance set by the UK Department for Transport when deciding on the size, gradient and spacing of road bumps."
http://www.iomtoday.co.im/news/Height-o ... 4931309.jp
Well Mr David Anderson MHK, here are the regulations you state that your department follows...
The (UK) Highways (Road Humps) Regulations 1999. This prescribes that road humps must have:
• a minimum height of 25mm
• a maximum height of 100mm.
• a minimum length of 900 mm
Also, no vertical face of any part of a road hump shall exceed 6mm in height.
The Department for Transport (UK) recommends the use of 75mm high road humps to avoid potential incidents of grounding and also to avoid possible discomfort to vehicle occupants, as previously detailed.
The Highways (Road Humps) Regulations 1999
http://www.opsi.gov.uk/si/si1999/19991025.htm
75mm high road humps
http://www.dft.gov.uk/pgr/roads/tpm/tal ... ge=1#a1000
Whoops! Oh dear D.O.T! It transpires that the vast majority of the speed humps that the D.O.T. has installed over the years on the Island are in fact illegal under the aforementioned regulations.
Oh it gets better!
In a letter dated 11th April 2003 from Mr J A Davidson from the Highways and Traffic Division of the Department of Transport, which was addressed to the residents of Strang Road and Ballanawin Estate, detailed a proposed Traffic Calming scheme on the A22 (Strang Road) for three table top ramps. In this letter and enclosed plans it clearly states that the height of the table top speed humps “is proposed at 125mm highâ€.
Again further confirmation in writing from the D.O.T. that they do not follow the prescribed regulations!
I think I am going to take this matter up with Mr Peter Karan MHK, Mr Anderson MHK along with Isle of Man Newspapers as I should be able to drive my vehicle along any public road unhindered. That is what I pay vast sums of Fuel Duty and Road Tax for!
Let me know what you all think!
Oh and some more links!
http://www.abd.org.uk/speed_humps.htm
http://www.bromleytransport.org.uk/Humps.htm
http://en.wikipedia.org/wiki/Speed_bump