[pierreh]

In my previous post I showed the link between Arcens and Marlande, that is quite saturated. I also showed that the flow coming from Arcens goes partly to Desognes in pass-thru mode, and partly to the CBD of Marlande. That component of the flow exits the highway on a single ramp.

There is a similar situation in Arcens: the bulk of the traffic going to Marlande uses a single ramp, that is quite congested:




All the car traffic entering the highway via the ramp originates in residences on the east (= on the right) of the ramp. Presumably, for those residences the boundary to Marlande (which 'is' Marlande for the traffic simulator) is nearer than the proximate commercial zone in Arcens.




A similar situation is noted for the GLR and bus traffic: buses entering the highway via the ramp are boarded by Sims living in the residences on the east of the GLR+bus combo station. Some of the Sims use the GLR to arrive at the combo station (circled in black) where they change to intercity buses going to Marlande. Not a single Sim comes from the west (= from the left) side:




This means that it will not be easy to reduce the car and bus traffic on the intercity link between Arcens and Marlande.