[CTPP] Commuters Who Drive Alone but Do Have Access to a Vehicle

We are preparing an analysis of the 2006-10 CTPP flow data to support our transportation planning program. An issue that has come up is that we are seeing a small but noticeable proportion of commuters who state they have 0 vehicles available but whose primary commute mode is driving alone. Aside from the obvious explanation of making a mistake when completing the ACS survey can anyone provide thoughts on how we might explain this anomaly? Thanks Cliff Cook Clifford Cook, Planning Information Manager Cambridge Community Development Department 344 Broadway, Cambridge, MA. 02139 www.cambridgema.gov/CDD ccook(a)cambridgema.gov M: 8:30-8:00 T-Th: 8:30-5:00 F: 8:30-Noon 617/349-4656  617/349-4669  FAX 617/349-4621 TTY