Oslo is currently blanketed in various cold masses as winter sets in, resulting in a unique set of road conditions that residents must navigate. This article from Aftenposten serves as a foundational guide to help both new and longtime residents understand the different types of 'halke'—a term used to describe slippery conditions in Norwegian. The guide details several variations of halke, such as 'vanlig hålke' (normal slippery conditions), 'sekundærfryst hålke' (secondary frozen conditions), and 'lurehålke' (deceptive ice), highlighting the dangers each type presents.

The article emphasizes the importance of awareness and caution, particularly for pedestrians and drivers, in understanding these winter conditions. It describes each type of halke with specific definitions and practical examples, explaining how they can develop under varying weather influences like milder temperatures followed by freezing conditions. Additionally, the existence of 'punkthålke'—accumulations of ice located in strategic places—underscores the unpredictable nature of road safety during winter.

Overall, this guide not only informs but also aims to foster a sense of community knowledge among Oslo’s residents about the perils of winter travel. By familiarizing citizens with these terms and the associated risks, the article contributes to public safety and a better appreciation of Oslo's winter climate challenges.