When ambient temperatures are high, this negatively affects driver concentration during long journeys and accident numbers rise. Which of the following is it advisable to do, so that you remain alert and can drive safely, even during high summer?

The selected combination of options 1 and 2 is correct because planning for regular breaks and staying hydrated are crucial for maintaining driver alertness, especially during long journeys in high temperatures.

According to German traffic regulations, drivers are required to ensure they are fit to drive, which includes being alert and focused. Regular breaks help prevent fatigue, while drinking enough water helps to keep the body hydrated and maintain cognitive functions, which are essential for safe driving.

Option 3, trying to perform trips around noon, is generally not advisable as intense sunlight and heat can further decrease driver concentration. Therefore, it is important to focus on the right strategies to stay alert, which is why the combination of options 1 and 2 is essential for safety on the road.