A few messages and tweets into the show over the last couple of days, talking about the increase in the amount of cars on the road.
This, of course, is linked to schools returning, in full, this week.
Should we be making a renewed effort to find ways to encourage people to walk or cycle, rather than drive?
Senator Pauline O’Reilly, leader for the Green Party in the Seanad, joined Kieran on The Hard Shoulder, as did Martina Callinan of the Galway Cycling Campaign.