I ride 3.5 miles of surface streets to reach a paved MUP and do laps usually. I used some rollers a bit over the winter so i didn't completely lose my gains from the previous year, but I started this spring at 15-16 miles in one hour, last night was a PB with 30 miles at 18.5mph. I'm tempted to clear the computer when I arrive and shut it off when I leave to throw out the stops/starts for traffic and street crossings. A flatter route with fewer moving obstacles might help, the 32mm cross tires probably aren't doing me any favors. Working towards a 20mph solo average.