Traffic jams are a common occurrence in many cities, and the sounds associated with them can be quite loud. The two most common sounds heard in traffic jams are 'BEEPS' and 'HONKS'. BEEPS are usually short, sharp sounds made by car horns or other warning devices. HONKS are longer, louder sounds made by car horns or other warning devices. Both of these sounds are used to alert other drivers of potential danger or to express frustration.