Final answer:
On seeing a merging traffic sign, it's best to move to another lane if safe to do so, to allow traffic to enter. If not possible, maintain current speed and adjust if necessary to help merging vehicles. Do not speed up to avoid congestion.
Step-by-step explanation:
When you see a merging traffic sign on the freeway, the appropriate action to take depends on the specific traffic conditions and what is safest in the given situation. Typically, you should not slow down abruptly as this can cause traffic congestion and potential rear-end collisions. Instead, if possible and safe, you should move to another lane to allow merging vehicles to enter the freeway seamlessly.
If changing lanes is not an option, you should maintain your current speed and be prepared to adjust your speed slightly to help merging drivers find a gap without causing abrupt braking. It is not advisable to speed up; this can create unsafe conditions and potentially lead to accidents.