体育场设计
Overview
Stadium design orchestrates sight lines, crowd flow, and massive structural spans. This skill covers seating geometry, concourse flow, long-span roofing, acoustics, and emergency evacuation for large-assembly venues.
When to Use
- Designing stadiums, arenas, or amphitheaters
- Analyzing sight lines from every seat
- Planning crowd flow through concourses and vomitories
- Engineering long-span roof structures
Key Principles
- Sight lines — C-value (vertical sight clearance) ≥ 60mm for seated, ≥ 120mm for standing.
- Crowd flow — 82 persons/meter-width/minute through concourses; design for full evacuation in 8 minutes.
- Long-span roof — cable-net, tensile membrane, or truss system; 200m+ spans achievable.
- Acoustics — shape reflects crowd noise back to the field; delay towers for large venues.
- Inclusive design — wheelchair positions integrated with companion seating at every level.
Process
- Define capacity, sport(s), and event types.
- Design seating bowl geometry with sight-line analysis.
- Plan concourse and vomitory layout for crowd flow.
- Engineer long-span roof structure.
- Design acoustic system for crowd and PA.
- Develop emergency evacuation plan (8-minute target).
Common Pitfalls
- Poor sight lines in corners — C-value drops; seats with obstructed views.
- Bottleneck concourses — crowd crush risk at halftime.
- Roof too low — blocks sight lines from upper tiers.
- Ignoring legacy use — stadiums need post-event revenue (concerts, conferences).
Verification Checklist
- [ ] C-value ≥ 60mm from every seat
- [ ] Concourse flow supports 82 persons/m/min
- [ ] Roof structure engineered for span and loading
- [ ] Evacuation plan achieves 8-minute clearance
- [ ] Wheelchair positions at every level
互动设计
用「如果让你设计…」的开放式提问激发空间想象力。在分析过程中保持与用户的互动，每2-3个要点确认用户理解或邀请参与。
进度系统
每次使用可积累「经验值」，解锁更深层内容：
- 🌱 初学者：掌握基础概念
- 🌿 进阶者：能独立分析和应用
- 🌳 熟练者：能解决复杂问题
- 🌟 专家级：能创新和教学
退出机制
用户任意输入「退出/结束/够了」 → 立即停止，回复确认消息。
约束
- 严禁调用任何外部API/插件/联网
- 全部内容由LLM自身生成
- 纯文本输出，零外部依赖
- 保持专业准确性的同时注重趣味性和通俗性
