First time iPUMS user so pardon if this is a basic question.
We’re trying to analyze trends in travel time to work (TRANTIME) and transportation mode (TRANWORK) by using IPUMS-USA data from the 1990 and 2000 decennials, along with 2010 ACS data. We’ve created a data extract from 1% samples of the full data file across these years. In addition to the work-related variables, we’ve added the below geographic-oriented variables to support analyses at varying geography levels:
STATEFIP (State (FIPS code))
METAREA (Metropolitan area [general version])
METAREAD (Metropolitan area [detailed version])
I wanted to inquire if the data extract, as described above, is appropriate for this type of analysis or if there are any land mines we should be aware (e.g. comparing decennial data to ACS data). In particular, we’re interested in trends in travel time/mode by MSA, so would be interested in feedback on that front.
Also, does anyone know of third-party analyses (perhaps pre-baked Census summaries) that cover the same variables? I’d like to sanity check any custom analysis we perform against a third party’s summary data to ensure our summaries are accurate.
Any advice on the above is greatly appreciated.