An Engineered Materials Arrestor System (EMAS) bed under construction. The slope part on the left is the blast shield. The EMAS blocks are on the right.
Federal Aviation Administration
2004-09-07
<a rel="nofollow" class="external free" href="http://www.faa.gov/airports/eastern/airports_news_events/hershey/media/runway_safety_areas.pps">http://www.faa.gov/airports/eastern/airports_news_events/hershey/media/runway_safety_areas.pps</a> <i>(dead-link on 08 April 2016)</i>