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Metric Road and
Pedestrian Signs
There is persuasive
evidence to indicate that the abolition of the mile and the adoption of metric
for distance signs and speed limits are on the government's
agenda.
What is the
government's stated position? The Department of the Environment,
Transport and Regions (DETR) says that the government
has:
"...no plans to
replace imperial signs with metric signs until the majority of drivers have
been educated in the metric system...Given that a UK driving licence is
valid until the holder reaches 70
it will be some time before the present
government considers the need to change our signs" (letter
6/9/00).
We
have underlined the relevant part of the above passage. It suggests that the
government will consider metric road signs in 2010, the year metric-educated
drivers outnumber imperial-educated drivers. In a further
letter, the DETR states:
"Both the present and previous governments have indicated that they
have no plans to replace imperial signs with metric signs until the majority of
drivers have been educated in the metric system, which is likely to be some
time. It is for this reason that we would not consider changing the Regulations
to allow the use of metric units on direction signs in the near future"
(21/9/00).
The
"near future" could be the five-year period leading to 2010. Taken separately
or together, these letters would appear to confirm that metric signage will be
on the government's agenda in or around that year. Moreover, there is clear
evidence that the government is already, surreptitiously, gearing up for
"K-Day":
i) Illegal sign conversion Metric signs are
currently illegal in Britain, barred by the 2002 Traffic Signs Regulations and
General Directions. However, for a number of years, a large number of local
councils have been using metres in place of yards on road and pedestrian signs;
for example, "Speed Humps 20m", or "Tourist Information 150m". Until recently,
there was no evidence to link these local actions to central
government.
However, in
response to complaints, some councils have recently said that the metric signs
are "in line with [the DETR's] current thinking". This would tend to suggest
that the DETR's metric agenda is further ahead than what it acknowledges
publicly, and that councils that erect illegal metric signage have its tacit
approval. In fact, the DETR has stated to at least one local council: "...we
will not insist that you remove the signs"
(21/9/01).
For the record,
the legal position is as follows:
- It is not
lawful to use signs that show distances in metres or kilometres. This applies
to both road traffic signs and pavement signs for pedestrians (although not to
signs on private land).
- It is a legal
requirement that signs giving restrictions on traffic width, length and height
(eg on approaches to bridges) have imperial units.
- Dual-marked
imperial-metric signs are legal for vehicle height and width restriction signs
but not for length restriction signs.
- For length
restriction signs, metric may be used alongside imperial but only on separate,
additional signs (in practice, this rarely happens due to the cost of extra
signs).
| Illegal: Metric-only height restrictions |
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Illegal: Metric road distance signs |
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| Illegal: Metric-only width restriction
signs |
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Illegal: Metric pedestrian distance signs |
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Illegal: Metric-only vehicle length restriction
signs |
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ii) Covert sign conversion New signs along main
roads have been appearing at odd distances of 110yds, 220yds, 328yds, etc. The
purpose of these locations is revealed when they are translated into their
metric equivalents: 100m, 200m, 300m. Moreover, odd speed limit signs have
appeared, such as 12 mph (equal to 20 kph) and 19 mph (30 kph). When asked to
explain this, the DETR states:
"While EU directives permit the retention of imperial units on speed
limit and direction signs, the UK has no derogation from the requirement that
technical documents use metric units...the guidance in the Traffic Signs Manual
on...placing signs [therefore] uses metric units" (3/10/00).
|
|
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| 19 miles per hour equals 30 kph |
|
110 yards equals 100 metres |
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| 328 yards equals 300 metres |
|
383 yards equals 350 metres |
iii) Regulatory amendments Illegal
installation of metric signs as described in (i) is gradually followed up by
changes in the law that legalise what has already happened. For example,
although dual metric-imperial width restriction signs are currently illegal,
the DETR says: "We propose to include a width restriction sign combining metric
and imperial units when the revised regulations are made" (20/2/01). In other
words, local authorities are breaking the law in anticipation that the law will
be changed.
Moreover, amendments in regulations to permit dual signs also favour
metric in terms of prominence. The Traffic Signs Manual requires that metric is
placed above the imperial and that the font-size for the whole metre figure is
larger. The DETR denies that this is to give metric prominence, saying that it
is "for design reasons" (20/2/01).
iv) Administrative conversion For
example:
- White
distance-marker posts along motorways (usually marked with an arrow to indicate
the nearest telephone) are placed at intervals of 100 metres. The DETR says
this is to "assist maintenance crews to locate their exact
position".
- The Highway Code is in
metric. For instance, stopping distances are given as follows:
| Speed |
Typical Stopping
Distance |
Thinking Distance |
Braking Distance |
| 20mph |
12 metres (40 feet) |
6 metres |
6 metres |
| 30 mph |
23 metres (75 feet) |
9 metres |
14 metres |
| 40 mph |
36 metres (120
feet) |
12 metres |
24 metres |
| 50 mph |
53 metres (175
feet) |
15 metres |
38 metres |
| 60 mph |
73 metres (240
feet) |
18 metres |
55 metres |
| 70 mph |
96 metres (315
feet) |
21 metres |
75 metres |
The stopping distances appear
to be based on round figures in feet - but the equivalent in metres is given
first in all instances. Curiously, yards are not used, even though this is the
unit of distance on road signs. The Highway Code makes no reference at all to
feet or yards for the description of thinking and braking distances; only
metres are used. The Highway Code also states that headlights must be used when
the driver cannot see beyond "100m (328ft)".
- Government
computer systems designed to record road traffic information are to use three
digit fields for vehicle speeds. According to an internal government document
(reproduced below), "
three boxes have been provided to allow for eventual
metrication".
What then must be done?
The
government's tactics in achieving metric signs follow the undeclared,
slice-by-slice approach seen so many times before with metric conversion. BWMA
believes that K-Day is a very real threat and that, if it is to be averted, we
have to act now against the current encroachments. By enforcing the current law
and purging illegal metric signs, a message be sent to the present and future
governments that Britain will NEVER accept the use of kilometres on our roads.
Support the resistance by going to "Join the
Action" on the contents list to the left (alternatively,
click here to join the
resistance). We also have a Discussion Forum on Metric Transport
Signs. |