Who first comes to Dublin will quickly notice particular sounds throughout the city:

Alarms

One of Dublin's most prominent features are home and car security alarms all over the city.

The burglar alarms are often prominently placed right over the main entrance.

Traffic lights

"Beam me up Scotty!". Those traffic light sounds are sometimes shocking! You'll get to listen to them when the pedestrian traffic light turn green and you are ok to go.

Collection vehicles

LUAS

---