In stadiums, theaters and other large performance venues. In order to facilitate the staff to set up lighting, acoustics, stage machinery and other ancillary facilities, it is necessary to set up walkways for the staff to walk and work at high altitude, which is called "Ma Dao".

Madaudo exists in the high slope and vertical plane during the construction, and its main function is to ensure the stability of the slope (generally, a "horse path" will be set when the slope is excavated above 10m, others will depend on the situation) to ensure the traffic during the construction, which is mainly used by personnel and small equipment.

Extended data:

"Ma Dao" is a term in early architecture. At that time (mainly 90 years ago), vertical transportation mainly depended on "gantry crane", so a full-height sawtooth ramp was built with scaffolding poles and springboard outside the building far from the vertical passage for people to walk between adjacent floors.

In water conservancy projects, "horse path" refers to the transportation road or platform in the cofferdam during the excavation of deep foundation pit (which can also be interpreted as the transportation road or platform for the excavation of slope). A drainage ditch is arranged at one side of the horse path for drainage, and the drainage ditch at one side of the horse path is used for discharging the filtered water of the cofferdam. The function of horse track is to intercept rainwater and prevent dam slope from scouring, and it is also used for traffic, dam physical examination, maintenance and observation, which is also beneficial to dam slope stability.

Baidu Encyclopedia-Madao