Again not all true!! I have seen many mew arterial roads with less traffic than other arterial roads.It is not all doom and dull those arterial roads with a good city planner .It seems a city with lack of arterial roads and only 2 or 3 arterial roads have more problem than a city with lots of arterial roads.
Well I don't know what he is talking about here.They are noted for their lack of residential entrances directly onto the road (except in older or more dense communities);
An arterial road is a moderate or high-capacity road which is immediately below a highway level of service. Much like a biological artery, an arterial road carries large volumes of traffic between areas in urban centres. They are noted for their lack of residential entrances directly onto the road (except in older or more dense communities); they are designed to carry traffic between neighbourhoods, and have intersections with collector and local streets. Often, commercial areas such as shopping centres, gas stations and other businesses are located on them. Arterial roads also link up to expressways and freeways with interchanges.