Research and Application of Key Technologies for Dual Prevention of Operational Safety in Highway Infrastructure

Project Overview:

As of December 2025, Guizhou Province will have a total of 9,563 kilometers of completed expressways. Coupled with the province's unique topographical and climatic conditions, its expressway infrastructure faces tremendous pressure on operational safety. In October 2016, the Office of the State Council’s Work Safety Committee issued the "Opinions on Implementing Measures to Curb Major and Extremely Serious Accidents and Establishing a Dual Prevention Mechanism" (Anwei Ban [2016] No. 11), which for the first time proposed the establishment of a dual prevention mechanism comprising hierarchical control of safety risks and systematic identification and remediation of hidden dangers. In June 2021, the newly revised "Work Safety Law" explicitly required the "establishment of a dual prevention mechanism for hierarchical control of safety risks and systematic identification and remediation of hidden dangers, the improvement of risk prevention and resolution mechanisms, the enhancement of work safety standards, and the assurance of safe production." However, in the field of expressway operations, the dual prevention mechanism—comprising hierarchical control of safety risks and systematic identification and remediation of hidden dangers—remains incomplete, and preventive technologies are still immature. As a result, deep-seated contradictions and problems that constrain the operational safety of our province’s expressway infrastructure remain unresolved. Since 2016, relying on key science and technology projects listed by the Ministry of Transport, science and technology programs of the Guizhou Provincial Department of Transport, and basic scientific research funding projects from central-level public-interest research institutes, and taking into account the actual conditions of our province’s expressways, we have organized joint efforts among industry, research, and application entities to tackle these challenges. As a result, we have developed a set of comprehensive technologies tailored to the operational safety characteristics of our province’s expressway infrastructure—including a dual prevention mechanism, a systematic approach to hierarchical risk control and hidden danger identification and remediation, and an integrated management platform for the dual prevention system.

Project Highlights:

1. A dual-prevention model and mechanism have been established for the hierarchical management and control of operational safety risks and the identification and remediation of hidden dangers in highway infrastructure. This approach has facilitated the proactive shift of safety production management to an earlier stage, effectively ensuring the fulfillment of statutory safety production responsibilities, enhancing the level of safety production management, and reducing operational management costs.

2. A comprehensive set of technologies for the hierarchical management and control of operational safety risks in highway infrastructure has been proposed. These technologies enable an analysis of the causal mechanisms behind operational safety incidents in highway infrastructure from the perspectives of people, objects, environment, and management, and facilitate automated risk assessments with an accuracy rate exceeding 95%, significantly enhancing the precision of risk assessment results.

3. A comprehensive set of technologies for identifying and addressing operational accident hazards in highway infrastructure has been proposed. A typical hazard identification checklist for highways, along with an integrated framework for the prevention and control of accident hazards, has been developed, taking into account factors such as the severity of accident consequences caused by hazards, the resources required for hazard rectification, and the impact of hazard management levels.

4. We have developed an integrated dual-prevention technology and management platform for operational safety of highway infrastructure. This platform addresses the needs for precise identification, intelligent classification, real-time analysis, and dynamic management of operational safety risks and hazards in highway infrastructure.

5. The technological achievements have supported risk management and hazard identification efforts along more than 1,000 kilometers of expressways both within and outside the province, while also promoting a shift in our province’s expressway operation and safety management toward “systematization, standardization, and refinement.”

Honored Achievements:

Third Prize of the Guizhou Province Science and Technology Progress Award;
Published 1 industry standard and 1 technical guideline;
Held 5 invention patents and 15 software copyrights, and published 16 papers (12 of which were indexed by SCI/EI).

Project Showcase: