The US census asks households about travel patterns every few years. Here's a link:
SWITRS is a database of road crashes in California, however counting only ones that generate a police report:
Los Angeles has a crowdsourced map of bicycle crashes and near misses, devised by a PhD statistician, lots of data:
These might help you decide whether to go forward with your project, which sounds worthy.
On Oct 23, 2012, at 8:51 AM, catecara wrote:
> Hi all,
> I would like to have your feedback about an idea for a possible case
> study for a project that we have just started thinking of (this is the
> early stage of project proposal-making).
> The project is about reasearch in the area of visual analytics, i.e.
> visualization of large scale datasets (from terabyte up). At this
> point we have identified a few use cases -- applications where
> appropriate visualization of big data makes the difference (and it is
> difficult to achieve).
> My Big question is: does it make sense to think of a use case in the
> area of transport? (I am being general here: any type of
> transportation means in any combination, over any distance, or
> Implied questions:
> - Is there big data about traffic, transports and the like available?
> My feeling is that if such data is available, good
> processing/visualization could help understing traffic fluxes, and
> improve optimization.
> - is somebody working on this or related issues already? transport
> companies, reasearch institutes, ... ?
> I hope I described the situation clearly, if you have question please
> just ask. Many thanks in advance!