How can you tell if it is safe to merge into traffic?

When merging into traffic, it's essential to check mirrors and blind spots for open gaps because this ensures that you have a clear and safe path to enter without disrupting the flow of other vehicles. Utilizing mirrors allows you to see directly behind and beside your vehicle, but blind spots can conceal vehicles that are not visible in your mirrors. By checking these areas, you can accurately gauge whether there is enough space to merge safely without forcing other drivers to adjust their speed or position.

Listening for engine noise is not a reliable method because it does not provide visual confirmation of the traffic situation around you. Relying solely on mirrors is also insufficient, as they do not show everything in your immediate vicinity. Similarly, closely following the vehicle in front can put you at risk if that vehicle has to brake suddenly or if the space in front of it is not adequate for merging. Being aware of your surroundings is key to making a safe merge, highlighting the importance of checking both mirrors and blind spots for open gaps.