Satellite Maps: Shanghai’s Supply Chain Standstill
China has mandated a strict “zero COVID” policy since the onset of the global pandemic, which has led to tight lockdowns across the country whenever cases have started to spike.
Recently, lockdown restrictions have been enacted in major cities like Shenzhen and Shanghai, as China deals with one of its worst outbreaks since Wuhan in December 2019.
These cautionary measures have had far-reaching impacts on China’s economy, especially on its supply chain and logistics operations. Shanghai’s port system, which handles about one-fifth of China’s export containers, is currently experiencing significant delays as a result of the recent government lockdown.
Shipping volume has dipped drastically since early March this year, right after partial lockdowns began in Shanghai. By the end of March, as restrictions continued to tighten up, shipping activity dipped nearly 30% compared to pre-lockdown levels. And while activity has recently picked up, it’s still far below average shipment volumes prior to the recent lockdown.
While the port is still technically operating, shipping delays will likely cause hiccups in the global supply chain. That’s because the Shanghai port is a major hub for international trade, and one of the largest and busiest container ports in the world.
How Bad is the Back-Up?
Here’s a closer look at satellite imagery that was captured by the Sentinel-1 satellite, which shows the current congestion at Shanghai’s port as of April 14, 2022. In the image, a majority of the white dots are cargo ships, many of which have been stuck in limbo for days.
Traffic has been building up at the Shanghai terminal. As of April 19, 2022, over 470 ships are still waiting to deliver goods to China. If you’d like to check out the Shanghai ports most up-to-date traffic, this live map by MarineTraffice provides real-time updates.
The number of container vessels waiting outside of Chinese ports today is 195% higher than it was in February. – Windward
Much of these delays are due to transport issues—an estimated 90% of trucks that support import and export activities are currently offline, which is causing dwell time for containers at Shanghai marine terminals to increase drastically.
Wait times for at Shanghai marine terminals has increased nearly 75% since the lockdowns began. Delays at the Shanghai terminal have sent ships to neighboring ports in Ningbo and Yangshan, but those ports are beginning to get congested as well.
The global impacts of this current bottleneck are still pending, and depend greatly on the length of Shanghai’s lockdown. According to an article in Freight Waves, this could turn into the biggest supply chain issue since the start of the pandemic if China’s marine shipping congestion isn’t cleared up soon.
Visualized: Seaport Trade Traffic by Country
This infographic highlights the countries with the highest container traffic across their ports, thus dominating seaport trade in 2021.
Visualized: Seaport Trade Traffic by Country
According to the World Bank, global seaport trade traffic reached 841 million TEUs (20-foot container equivalent units) in 2021.
In this infographic, Winifred Amase uses that data to highlight the countries with the highest seaport trade traffic.
China Leads All Seaport Trade Traffic
With a third of the world’s total seaport trade traffic surrounding its many ports, it’s no surprise to see China on top of the list.
In addition to owning seven of the world’s 10 busiest ports, the country also owns close to 100 ports across 63 other countries. This brought the country’s container traffic up to 263 million TEUs in 2021.
|Country||20-Foot Container Count (2021)|
|🇺🇸 United States||61M|
|🇰🇷 South Korea||30M|
|🇦🇪 United Arab Emirates||19M|
|🇭🇰 Hong Kong SAR, China||18M|
In second place is the United States, which saw container traffic of 61 million TEUs. Massive U.S. ports in Los Angeles and New York are some of the busiest ports on the continent.
Asian countries dominated the rest of the top 10 list, taking up seven of the remaining eight spots.
Singapore came in third with 37 million 20-foot container units passing through in 2021. The port handled 599 million tonnes of freight, making it the busiest single port in total shipping tonnage.
The ports in Dubai and Abu Dhabi make the United Arab Emirates a key player in Middle Eastern trade. With a container traffic of 19 million TEUs, the UAE is seventh on the list of nations with the highest seaport traffic in 2021.
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