At CPW, I was really confused about the different shuttle lines. Can someone explain the whole system to me? Are the daytime shuttles (in addition to nighttime shuttles) called SafeRide or are they just called daytime shuttle? Do Boston East/Boston West/Cambridge West/Cambridge East run during the day or is it only during the night? Why does the daytime shuttle run during night? What route does the daytime shuttle go on? When I asked, the driver simply said, "the daytime route" and it's not in that little schedule that we got in our CPW folders.