Regulatory Sign/Minimum Speed
Minimum Speed Limit Signs
| Minimum Speed Limit | |||
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| Examples of 'Minimum Speed Limit" signs | |||
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| TSRGD ref : | 672 | ||
| From : | 1981 | ||
| To : | present | ||
| Changes : | 1981 | ||
This sign means vehicles must not travel under the speed limit shown unless it is unsafe to do so.
Pre-Worboys Sign
This is a relatively new sign, and has no pre-Worboys equivalent.
The Scottish Roads Archive have a photo of the southern approach to the Clyde Tunnel from March 1964 showing two signs stating "Minimum 8mph". It pre-dates the erection of the first Worboys signs by around 6 months. They have suggested the signage was perhaps unique to the tunnel at that time. A low resolution version of the photo can be seen on the BBC News website.
Worboys Sign
This sign was first introduced in the 1981 TSRGD and has not been changed since then. Minor alterations have been made since then, but overall these are hardly noticeable.
End Of Minimum Speed Limit Signs
| End of Minimum Speed Limit | |||
 | |||
| Examples of 'End of Minimum Speed Limit" signs | |||
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| TSRGD ref : | 673 | ||
| From : | 1981 | ||
| To : | present | ||
| Changes : | 1981 | ||
This sign means that a minimum speed limit has ended.
Pre-Worboys Sign
This is a relatively new sign, and has no pre-Worboys equivalent.
Worboys Sign
This sign was first introduced in the 1981 TSRGD and has not been changed since then. Minor alterations have been made since then, but overall these are hardly noticeable.
