Chris's points about the last week of March survey period is also why the bicycle mode is likely to be underreported. March isn't prime biking weather in these parts, and even I only bike to work 25% of the time (unless its bike to work week or I get the long form census survey). Keep in mind that the 2000 Census Supplemental Survey was taken over a year's time and will have different and maybe more realistic JTW info. I will be comparing the 2 sources. Don Burrell, Senior Planner Bicycle / Pedestrian Coordinator OKI Regional Council of Governments 801-B West Eighth St. Suite 400 Cincinnati, OH 45203-1607 513-621-6300 513-621-9325 - fax dburrell(a)oki.org <mailto:dburrell@oki.org> <A bicycle is an instrument for playing the road> -----Original Message----- From: Forinash.Christopher(a)epamail.epa.gov [mailto:Forinash.Christopher@epamail.epa.gov] Sent: Wednesday, June 05, 2002 9:50 AM To: dsaladino(a)swrpc.org Cc: ctpp-news(a)chrispy.net Subject: RE: [CTPP] US States Rankings for Means of Transportation to Work Hey David and list, Keep in mind the Census date is 4/1/2000, and the question (if I remember correctly) asks for usual main mode to work over the past week. That's one of the flaw's with using CTPP/JTW for much more than "hmmm" factoids, and is clearly a reason why transit shares show up so much lower than other observations reveal. For example, I don't take transit to work every day, but I do so at least once a week, and sometimes for the trip to and not from, etc. Chris.