There are many cases in highways where there is an on-ramp shortly followed by an off-ramp. In those cases, the right lane/s serve for those who get on the HW from the on-ramp, as well as those who get off the HW on the off-ramp.
A wazer that gets on the HW from the on-ramp and has to continue on the HW should get lane guidance to go onto the left lanes when approachng the next junction of the off-ramp, otherwise, he might continue on the right lanes and get off the HW.
A wazer that comes on the HW and approaches the off-ramp, but has to continue on the HW does not have to get lane guidance (it is disturbing to get lane guidance for every off-ramp on the HW).
The suggetion is to allow a conditional lane guidance that will allow to define separate lane guidance according to where the wazer came from (not to be confuzed with another suggestion to deal with lane guidance for a turn that will be taken later on).