NTSB rail investigator Tim Depaepe conducts signal tests at the intersection where CA grade crossing accident occurred.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/68618467@N03">National Transportation Safety Board</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/ntsb/16652006302/">NTSB rail investigator Tim Depaepe conducts signal tests at the intersection where CA grade crossing accident occurred.</a>