Transit and rail industries in many nations have already adopted the digital system as their regular radio communications system . in asia for example , the digital trunked radio system has already been adopted for system expansion or replacement by several organizations . these include the transit northeast line in singapore 1991 , the mass transit system smrt in singapore 1998 , the high speed railway in malaysia 2000 , the guang - zhou subway in china 2000 , the west line of guang - jiu railway in china 2000 , the peking light railway in china 2001 , and the new delhi transit system in india 2001 據(jù)了解現(xiàn)在各國新建捷運路網(wǎng)無線電系統(tǒng)規(guī)劃方式,有往數(shù)位干線式無線電系統(tǒng)發(fā)展之趨勢,并且已成各國捷運及鐵道工業(yè)無線電通信的主流標準,以亞洲為例:新加坡捷運東北線( 1998年) 、新加坡高運量捷運smrt ( 1998年) 、馬來西亞快速鐵路( 2000年) 、中國廣州地鐵( 2000年) 、中國廣九鐵路西線( 2000年) 、印度德里捷運( 2001年) 、中國北京輕軌系統(tǒng)( 2001年) .均已于系統(tǒng)擴建或新建時規(guī)劃采用數(shù)位干線式無線電系統(tǒng)。
The project division provides full - scale project management , consultancy and advisory services , covering a full range of electronics , telecommunication , electrical , mechanical , gas , instrumentation and computer - controlled systems , e . g . trunked radio systems , vehicular tunnel supervisory , lighting and ventilation systems 工程策劃部提供全面的工程管理、顧問及諮詢服務,范圍涵蓋各方面,當中包括電子、電訊、電氣、機械、氣體、檢測儀器及電腦控制系統(tǒng),例如集束無線電話系統(tǒng)、行車隧道監(jiān)管系統(tǒng)、照明及通風系統(tǒng)。