Authorizing counties, cities or towns to by ordinance establish a defined quiet zone to regulate or prohibit the sounding of horns, whistles or other audible warnings by locomotives, requiring the quiet zones, regulations and ordinances to conform to federal law; authorizing counties and cities to spend county state aid highway or municipal state aid street allotments to purchase, construct and install the necessary signals and barriers required to meet federal regulations in establishing quiet zones at intersections of railways and county state aid highways or municipal state aid streets (je)