Bumper-to-bumper highways with blazing horns is more than just annoying drivers, there is research to show that being stuck in a traffic jam is costing businesses big bucks.

TomTom Telematics, a unit of the Dutch company TomTom that manufactures navigational and mapping products, released a global report Tuesday on exactly how much this congestion is costing companies across 390 major cities — including Singapore, Sydney, Bangkok, Jakarta and London — in 48 countries.