Policy texts outline three development directions:deeper online handling,cross-regional access, and expanded scenario coverage-precisely as stated in the question.

The official vision emphasizes creating asmart and accessible governance experience-"easy to handle and smart to handle"-reflecting Huawei's user-centered digital government philosophy.

In smart-city governance systems, the medium screen is avisual analytics interfaceplaced in offices and meeting rooms for city-wide KPIs and key government applications. This matches e-government construction guidelines stating that decision cockpits should supportleadership office scenariosand integrate bothcity overview and government-application modules.

Intelligent-connected intersections mainly aim to improve traffic safety and traffic-flow efficiency. Accident reduction (C) comes from risk prediction and early warning (e.g., collision warning, blind-spot monitoring).
Communication efficiency (D) comes from low-latency, reliable V2X communications (5G/C-V2X). Law- enforcement and fine frequency are secondary effects, not core value goals.
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Linkage-command solutions rely on integrated communication, business collaboration, and system interconnection. Data governance platforms focus on metadata and quality management rather than real-time command operations; hence option C is excluded.