发送车辆慢行模拟数据，路口信息显示拥堵

[cmycoups]

Describe the bug

发送车辆慢行模拟数据，整个路口就2辆车，路口信息显示拥堵

To Reproduce

1. 模拟器发送车辆慢行模拟数据
2. 大屏上看到路口信息显示拥堵

Expected behavior

路口信息应为畅通

Screenshots

Log Information

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Desktop (please complete the following information):

• OS: [e.g. iOS]
• Browser: [e.g. chrome, safari]
• Version: [e.g. 22]

Additional context

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[cmycoups]

已解决。
#147