ROADWAY WITH Penn State College of Engineering巷道宽度宾夕法尼亚州立大学工程学院.pptVIP

ROADWAY WIDTH A FIRST RESPONDERS PRESPECTIVE I plan to go through some background material quickly and then look at some scenarios that illustrate some of the issues. First Responders to Local Emergencies Fire and Rescue Law Enforcement Emergency medical Services First responders to disaster includes a much longer list of organizations and an expanded list of access issues. The issue for First responders is Rapid safe access to incident scenes. Concerns include: Traffic and traffic control Road width Cul-de-sacs Parking Traffic Calming Traffic Diverting Bridge capacity Overhead clearance Today’s discussion will be directed to the question of road width. The discussion of road way width includes curbs and the width and stability of shoulders. Access concerns increase with the size of responding vehicles and the number of vehicles that typically respond to an incident. Who has the big toys? Fire apparatus comes in a great verity of sizes and functional layouts. Terminology to describe fire apparatus varies from place to place. The Department of homeland security is working on a classification system for apparatus. A quick photo gallery shows some of the differences. The general range of sizes for conventional fire apparatus is displayed on the following apparatus prints In summary most newer fire apparatus is between about 26 feet in length for a simple engine to more than 50 feet for a tractor drawn aerial truck. The larger engine rescue trucks, tanker/tender trucks, and the super rescues fall in between. The basic width is 8 foot 4 inches or 100 inches. In some cases fire departments add appliances on the sides of the vehicle that expand the width There is no standard for the type and amount of fire apparatus that should respond to a building fire incident. There are over 2000 fire departments or fire companies in Pennsylvania. Their available apparatus and staffing and community type vary widely. The following diagrams are not intended to show