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subway shunt / subway equipment

subway shunt
subway shunt

The large number of people merged in working hours make the subway crowded in some compartments, and some compartments are empty, but there is no sign for people to get notice. So we design this difflunet equipment to tell which compartments are available to have a seat.
The green light means the compartments are almost empty, the yellow light means the compartments are half full, and red light means the compartments are crowded.

Design

Zhejiang University

Zhejiang University
Hangzhou, China