Have there been reports of bikers being mugged in that area?? Would you be riding during heavy traffic times so you would be visible to drivers in case something Did happen? If it's a main thoroughfare I'm guessing you would be left alone - most muggers don't want an audience. You could also call the police station near there and talk to them - see how many biker muggings have been reported in the past year or so. They also might be able to suggest an alternative route - especially if they have a bike patrol.