This specification is applicable to the technical design, operation implementation, result arrangement and quality inspection of urban rail transit line network planning, new line construction, existing line renovation, operation line maintenance, third-party survey and third-party monitoring engineering survey work.
GB/T 50308-2017 Referenced Document
CJJ 61 Technical specification for urban underground pipeline detection and survey*, 2017-06-20 Update
CJJ/T 73 Technical code for urban surveying using satellite positioning system*, 2019-11-25 Update