You are driving a large, slow-moving lorry on a damp, misty morning and approach a level crossing with a sign instructing you to use the railway telephone before crossing. What should you do?

Explanation

The Highway Code Rule 294 states that if you are driving a large or slow-moving vehicle, or one with a risk of grounding, you MUST obey any sign instructing you to use the railway telephone to obtain permission to cross. This applies in all weather conditions, including mist or damp weather. You may also be required to telephone again once you are clear of the crossing.