Hi, Yuen Vehicles available by Units in structure is not available in standard ACS products. It's only available in CTPP. You can find this cross tab for counties and places more than 20,000 population in CTPP 2006-2008. CTPP 2006-2008 is available in AASHTO website (http://ctpp.transportation.org/Pages/3yrdas.aspx). All you need is to register and log in. I understand you are more looking for TAZ and Census Tract level data. Unfortunately, CTPP 2006-2010 which will be available in small areas will not be released until early 2013. Liang Long Federal Highway Administration Room 74-440 1200 New Jersey, SE Washington, DC 20590 tel 202 366 6971 fax 202 493 2198 e-mail liang.long(a)dot.gov <mailto:liang.long@dot.gov> ________________________________ From: ctpp-news-bounces(a)chrispy.net on behalf of Lee Yuen Sent: Tue 8/9/2011 10:23 AM To: ctpp-news(a)chrispy.net Subject: [CTPP] Data for vehicle availability by units in structure We are trying to find a crosstab showing number of vehicle available by units in structure (i.e. single-family unit and multi-family units..etc.). We prefer the data in TAZ, if not census tract will be fine. We find the table S2504 in 2005-2009 ACS listing these subjects, units in structure and vehicles available separately, but not cross tabulated. Any suggestion would be appreciated? The level of detail in PUMA just didn't work for our Travel Demand Model input. Thanks. Yuen Lee, AICP Director, Research & Analysis Chattanooga-Hamilton County Regional Planning Agency 423.757.0555 www.chcrpa.org