Optimism is growing that port delays and a trucking shortage in Shanghai are quickly abating, providing some relief to supply chains, though major hurdles remain.

Traffic into the city is picking up, with some logistics experts seeing activity returning to about 80% of levels seen before Shanghai’s COVID-19 lockdowns. The trucking situation in Shanghai could return to normal within the next one to two weeks, digital freight forwarder Flexport Inc. said in an emailed reply to queries.

Shanghai’s port operations are also improving. Daily container throughput — a measure of the amount of cargo handled — is about 95% of normal levels, according to local media reports. Shipping delays have been significantly reduced, with container vessels waiting 31 hours on average off Shanghai as of June 1, compared with 69 hours in late April, according to maritime data provider VesselsValue.