BLAIR COUNTY - PennDOT's traveling workers memorial made a stop in Blair County Monday. The memorial is made up of 84 crosses each decorated with a safety vest and a hard hat and is used to promote roadside safety. It was on display in the front yard of PennDOT's District 9 offices, in Holidaysburg. Each cross is a reminder of a PennDOT' employee that died working on duty since 1970. In 2011 there were more than 1,800 work zone crashes in Pennsylvania, resulting in 21 deaths including one highway worker. As for District 9 over the same time period - there were 64 crashes most of them were the result of aggressive or distracted driving.