When travelling on the M4 / M8 from the city or airport heading westbound, the speed always decreases from 90km/h limit to 70km/hr for a short section. it should be either 80 or 90km/h the entire way. There shouldn't be any 70km/h

When heading east to Guildford on Railway street from this location, the navigation routes to Fairfield Street whenever before going back onto Railway street rather than just using Railway street the entire way. It's as if this part of the road is non existent when heading east.