The way points of this bicycle route:
go out MITRE's Crosby drive exit and turn left, then dodge the traffic trying to get onto Route 3
turn right at the stoplight onto Rt 62, and ride underneath Rt 3 and straight through the next traffic light
turn left onto Hemlock (the first major left hand turn available), a small residential street
turn right at the end
a quick left at the 3-way intersection
Go straight through the big intersection / traffic light
turn right onto a tiny, dead end residential street (Bridge St.) with a small bridge at the end
Use the small bridge to cut through the into a corporate parking lot, then turn left
exit the parking lot and turn left onto Wiggins
Turn left onto bike path to head towards the city, or right to head towards the Bedford end
Turn left to head towards Somerville