I'm searching dataset with photos of front cars, like speed camera photos. Standford dataset is interesting, but too good quality, not from traffic cameras.
Who knows where to find such?
Open Data Ottawa's data portal has this data:
Traffic Web Cam Images Dataset
"Provides images for the City of Ottawa's traffic web cams. These images are available at sixty second intervals. To access the images users will be required to have an access key."
I don't know if these cameras are quite right for your purpose, but the Massachusetts DOT has their traffic cameras available via API: https://data.mass.gov/d/spgs-rk4q
Portland Oregon also has their cameras online in some form (can't remember my CivicApps login at the moment, so I'm not sure how good this dataset is): http://civicapps.org/datasets/its-cameras-intelligent-transportation-system