1.0.1 This Code is formulated with a view to strengthening the maintenance for urban road, keeping the functions of road facilities, standardizing the technical standards, improving the service level of urban road, ensuring the intactness and safe operation of road, as well as making the maintenance management for urban road more scientific, normalized and institutionalized.
1.0.2 This Code is applicable to the maintenance for urban road which is put into service after completion acceptance. Maintenance for bridge in urban road shall meet the requirements of the current national standard "Technical code of maintenance for city bridge" CJJ 99.
1.0.3 Maintenance for urban road shall not only comply with the requirements stipulated in this Code but also comply with those in the current relevant ones of the nation.
1 General Provisions 2 Symbols and Codes 2.1 Symbols 2.2 Codes 3 Basic Requirements 4 Road Detection, Evaluation and Maintenance Countermeasures 4.1 General Requirements 4.2 Regular Patrol 4.3 Periodic Detection 4.4 Special Detection 4.5 Pavement Technical Condition Evaluation 4.6 Pavement Maintenance Countermeasures 5 Subgrade Maintenance 5.1 General Requirements 5.2 Subgrade Frost Boiling 5.3 Road Shoulder 5.4 Side Slope 5.5 Retaining Wall 5.6 Side trench, Drainage Trench and Intercepting Drain 5.7 Special Soil Subgrade 6 Asphalt Pavement Maintenance 6.1 General Requirements 6.2 Maintenance for Common Damage 6.3 Upper Sealing for Pavement 6.4 Pavement Strengthening 7 Cement Concrete Pavement Maintenance 7.1 General Requirements 7.2 Pavement Routine Maintenance 7.3 Maintenance for Common Damage 7.4 Recapping and Pavement Improvement 8 Other Pavement Maintenance 8.1 Stone Block Pavement 8.2 Cement Concrete Blockwork Pavement 9 Footpath Maintenance 9.1 General Requirements 9.2 Surface Course Maintenance 9.3 Subgrade Maintenance 9.4 Curb Maintenance 9.5 Maintenance for Tree Grate and Foot Steps 10 Road Excavation and Restoration 10.1 General Requirements 10.2 Backfilling 10.3 Base Course Restoration 10.4 Pavement Restoration 11 Road auxiliary Facilities Maintenance 11.1 Lane Separator and Guardrail 11.2 Sign Board 11.3 Manhole and Gutter Inlet 11.4 Culvert 12 Maintenance Condition Evaluation 12.1 General Requirements 12.2 Demarcation of Disease and Defect 12.3 Survey Method for Maintenance Condition 12.4 Evaluation Indexes for Maintenance Conditions 12.5 Evaluation of Maintenance Condition 12.6 Inspection Records and Data Management 13 Maintenance Eengineering Inspection and Acceptance 13.1 General Requirements 13.2 Inspection and Acceptance of Maintenance Engineering for Bituminous Pavement 13.3 Inspection and Acceptance of Maintenance Engineering for Cement Concrete Pavement 13.4 Inspection and Acceptance of Maintenance Engineering For Footpath 13.5 Inspection and Acceptance of Maintenance Engineering For Other Pavements 13.6 Inspection and Acceptance of Road Excavation and Restoration 13.7 Inspection and Acceptance of Maintenance Engineering For Auxiliary Facilities of Roads 14 Safety Protection for Road Maintenance Work 14.1 General Requirements 14.2 Traffic Safety Precautions 14.3 Requirements of Mobile Road Maintaining Appendix A Tables of Urban Road Patrolling Appendix B Card of Urban Road Data Appendix C Types Of Damage to Asphalt, Cement Concrete and Footpath Pavements Appendix D Tables of Single-Item Deduction upon Damages to Asphalt, Cement Concrete and Footpath Pavements Appendix E Survey Form of Damage to Asphalt, Cement Concrete and Footpath Pavements Appendix F Weight Function Curve of Damage Evaluation Appendix G PCI Calculation Methods for Asphalt and Cement Pavements Appendix H Calculation Methods of Footpath Condition Index--FCI Appendix J Annual Report on Facilities Classification Appendix K Repairing Materials for Cement Concrete Pavement Appendix L Form of Inspection Record for the Maintenance Condition of Urban Road Explanation of Wording in This Code
