As always in France, intercity buses are less frequent than trains, and much slower.
There are trains to all the towns and cities mentioned in this chapter, with Reims the natural hub, especially now that it's just 45 minutes from Paris by TGV.
Reims is linked to Laon by the A26 expressway, and to Châlons-en-Champagne by the A4 expressway arriving from Paris.
The west, Amiens and Beauvais, are connected by the A16.
Épernay, south of Reims, can be reached from Reims by the twisting wine road or quicker N51.
Only Soissons, 20 mi southwest of Laon, is a bit off the beaten track.