Traffic in Simpson Bay can be hit or miss. Over the 12 days I was there it took 1 hour from Mullet Bay to Atrium one afternoon. Another afternoon it took 1 HOUR from Royal Palm to Atrium, which is a 5 minute walk. This particular day the traffic did not clear until early evening and was also backed up Billy Folly Rd to well beyond Simpson Bay Resort and probably La Vista. Another day I made a later afternoon trip from Atrium to the Carrefour/Mark's Place area and back in just over 30 minutes.