THE OBJECTIVES OF PHASE 3 INVOLVES THE FOLLOWING: TO FURTHER DEVELOP AND TEST THE AWD PROTOTYPE BY IMPROVING AND OPTIMIZING THE DIRECTIVITY PATTERNS, AND CONDUCTING AN EARLY TEST IN A RAILROAD COMMUNITY WHERE HORNS ARE SOUNDED FREQUENTLY. THIS INCLUDES DEVELOPMENT OF THE SYSTEM COMPONENTS THAT WILL BE NEEDED TO INTEGRATE THE AWD INTO A REAL RAILROAD ENVIRONMENT (E.G. CAPTURE TRAIN SPEED INFORMATION AND ESTABLISH SOUNDING TIMINGS AND METHODS) AND STREAMLINE THE OVERALL PROTOTYPE SYSTEM (E.G. ADVANCE CONTROL SYSTEM HARDWARE AND SOFTWARE)