What does this traffic sign mean?

Explanation: Priority signs are normally shown where the road is narrow and there isn't enough room for two vehicles to pass. These can be at narrow bridges, road works and where there's a width restriction. Make sure that you know who has priority, don't force your way through. Show courtesy and consideration to other road users.

Category: Road and Traffic Signs

References: The Official DVSA Guide to Driving: Section 6, Highway Code: Page 106, Know Your Traffic Signs: Page 18