±³Ãøº¸ÆÇ(Îéö°ÜÆ÷ù) foot board on bridge
±³Åë(Îß÷×) traffic
±³Åë°èȹ(Îß÷×ͪüñ) transportation planning
±³Åë°øÇÐ(Îß÷×ÍïùÊ) traffic engineering
±³Åë°øÇØ(Îß÷×Íëúª) environmental pollution caused by road traffic
±³Åë°ü¸®½Ã¼³(Îß÷×η×âã¿àâ) traffic control device
±³Åë±Ç(Îß÷×Ïê) traffic zone
±³Åë·®(Îß÷×Õá) traffic flow
±³Åë¼ÒÀ½(Îß÷×áÓëå) transportation noise
±³Åë¾ÈÀü½Ã¼³(Îß÷×äÌîïã¿àâ) traffic safety facilities