 Main Roads Western Australia monitors traffic volume across the state's road network, including various locations along North West Coastal Highway. In the 2012 / 13 financial year, the recorded traffic volumes ranged from 13,350 vehicles per day west of Geraldton – Mount Magnet Road down to 370 north of Minilya – Exmouth Road. The highest percentage of heavy vehicles was 45.5 %, west of Karratha Road. Reports commissioned by the Royal Automobile Club of Western Australia (RAC) in 2006 and 2008 gave most of the highway a four-star safety rating out of five, but with a significant proportion rated at a three-star level. The overall highway network was generally rated as three-star or four-star, with around 10 % in 2006 and 5 % in 2008 receiving a two-star rating.
