E associated works including at - grade roads , drainage , sewers , watermains , slope stabilization and protection works , traffic aids , street lighting , electrical and mechanical works , traffic control and surveillance system works , fire services main , irrigation system , hard and soft landscaping , fire hydrants and emergency crossing 進行相關(guān)的地面道路排水及污水渠輸水管斜坡鞏固護坡電氣及機械園景建筑及種植花木緊急過路處工程設(shè)置輔助交通設(shè)備交通管制及監(jiān)察系統(tǒng)裝設(shè)街道照明設(shè)備安裝消防水管街井頭灌溉系統(tǒng)。