The personnel and management of Concord crowd control have 20+ years of experience in providing safety and traffic control products to the construction industry. We know how important it is to make sure we keep people, adults and kids, out of harms way. Concord crowd control services endeavors to be the number one supplier of crowd control line barriers in North America by providing barriers made of the highest quality materials, and providing the best customer service in the industry. This product was designed with the North American climate in mind. It has a Thermal Resistance of +120 ºF, and is immune to extreme temperature changes, giving it cold resistance as low as -40 º.