LOS ANGELES (AP) — Poorly maintained highways and major roads cost Californians an extra $44 billion each year in repairs, accidents and time and fuel burned in traffic, according to a report issued Thursday by a transportation advocacy group. The formula estimating the cost is far from exact, and the report’s authors hope it will spur greater transportation spending. Still, the Washington-based research and advocacy group TRIP took a reasonable stab at putting a price tag on the problem.