Fill in the details from your home postcode to Stevenage FC here for a full route plan www.theaa.com/travelwatch/planner_main.jsp but for an edited version;
Approx. 56 miles; 1 hour 15 minutes.
Sat. Nav. SG2 8RH
Leave the A1 (M) at Junction 7 and take the A602 towards Stevenage. Go straight across the first roundabout and as you approach the next roundabout you can see the floodlights of the ground over on the right.
However, if you go straight across the roundabout then you will see the entrance on the left to the large official car park which is free.
The stadium; left hand square off the A602, and a mile away from the town centre!
(Thanks to http://footballgroundguide.com for travel directions.)