Rush days during the Chinese New Year (the Spring Festival) vacation
spring rush
Peak passenger traffic period during the Spring festival
(passenger)transport during the Spring Festival
或Spring Rush
参考资料：http://www.iciba.com/search?s=%E6%98%A5%E8%BF%90
spring festival transport rush或the peak travel period
造句13 million passengers wil be passing through Beijing Railway Station during the peak travel period
passenger transport around the Chinese lunar new year.
Spring Rush
参考资料：newspaper