These areas included the continuous upgrading of the bus fleet by providing more environmentally friendly , air - conditioned and wheelchair accessible buses , beautification of bus terminuses to improve passengers waiting environment 改善范围包括提供符合环保、设有空调及方便轮椅上落的巴士,以继续提升巴士车队的服务质素,并美化巴士总站,改善乘客候车处的环境。