What must you reckon with when it starts raining after a long period of dry weather?

When it starts raining after a long dry spell, drivers must be especially cautious due to specific conditions that can affect road safety.

A dangerous greasy film forms on the road surface because oil and dirt accumulate when there is no rain. This can lead to reduced traction and slippery conditions, increasing the risk of accidents.

Visibility also worsens quickly in these conditions. As soon as wipers are activated, any accumulated deposits can obscure visibility further, making it harder to see.

On the other hand, the notion that braking distance is shorter during rain is incorrect. In fact, it generally increases due to reduced tire grip on wet surfaces.

Thus, understanding these conditions and their implications is crucial for safe driving, in accordance with German traffic regulations aimed at preventing accidents.