指为延缓公路性能过快衰减、延长使用寿命而预先采取的主防护工程，包括日：妥ㄒ笛ご胧。
| 标准号 & 类别 | 标准名称 | 发布 |
|---|---|---|
| DB11/T 1591-2018 规范 |
Urban road daily maintenance operating procedures
城市道路 日常养护 |
2018-12-17 北京市地方标准 |
| DB12/T 938-2020 规范 |
Technical specification for preventive maintenance of asphalt pavement
沥青路面 |
2020-06-14 天津市地方标准 |
| DB13/T 5056-2019 |
Technical specification for preventive maintenance of expressway bridges and culverts
|
2019-09-23 河北省标准 |
| DB14/T 3097-2024 规范/规程 |
Guidelines for budget preparation for ordinary national and provincial trunk road maintenance projects
|
2024-09-03 山西省标准 |
| DB14/T 3329-2025 规范 |
Technical specification for preventive maintenance of civil structures in highway loess tunnels
|
2025-04-11 山西省标准 |
| DB42/T 1713-2021 规范 |
Technical regulations for pavement repair and maintenance of urban roads
城市道路 |
2021-07-20 湖北省地方标准 |
| DB50/T 232-2024 规范/规程 |
Technical regulations for urban road maintenance
|
2024-08-27 重庆市地方标准 |
| DB51/T 2800-2021 规范 |
Technical specification for preventive maintenance of highway cement concrete pavement
|
2021-08-02 四川省标准 |
| DB61/T 1995-2025 规程标准 |
Technical Specifications for Preventive Maintenance of Concrete Bridges on Highways
|
2025-04-18 陕西省标准 |
| DB6101/T 3216-2024 规范 |
City asphalt pavement maintenance
|
2024-11-29 陕西省标准 |
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