交通妨害[koutsuubougai] traffic obstruction
妨げ[samatage] obstruction
妨げる[samatageru] to disturb
妨礙[bougai] disturbance
妨害物[bougaibutsu] obstacle

妨業[bougyou] sabotage
妨業員[bougyouin] saboteur
公的不法妨害[koutekifuhoubougai] public nuisance
公務執行妨害[koumushikkoubougai] interference with a public servant in the execution of his or her duties
議事妨害[gijibougai] obstruction of proceedings