Guangzhou Metro Design Research Institute Co., Ltd., (hereinafter referred to as GMDI), founded in 1993, is the first rail transit design enterprise listed on the A-share market in China. GMDI has more than 2000 profes National Engineering Survey and Design Masters and special allowance experts of The State Council. It possesses the highest industry qualifications such sional and technical personnel, including a large number of industry leaders such as as national comprehensive Class- A engineering design, comprehensive Class- A engineering investigation, Class- A urban and rural planning, and Class- A civil air defense design. GMDI has always been led by Innovation, and has created a number of "China firsts" in project scope. It has won many national and provincial awards, being the high-tech enterprise with highest innovatively, greatest design activity and best value-adding service.