Container shipping is once again under pressure from widespread port congestion, but headline delay figures are only telling part of the story.
Across major global hubs, vessel queues are building, schedules are slipping, and reliability is deteriorating. Yet at the same time, reported delay metrics appear to be improving.
The reason lies in how carriers are managing disruption.
The hidden reality of “negative delays”
Undoubtedly with best intentions shipping lines have increasingly built buffer time into schedules, to absorb ongoing disruption, particularly following prolonged diversions around the Red Sea and Middle East.
Longer published transit times allow carriers to recover from delays more effectively, meaning vessels increasingly arrive "early" against their revised schedules. While this improves official schedule performance, it can also mask the underlying level of operational disruption still affecting global networks.
This has created a growing number of early vessel arrivals, artificially reducing average delay figures. In effect, “negative delays” are obscuring the true level of disruption across global networks.
Compared to pre-pandemic norms, early arrivals have more than tripled as a share of global traffic. This indicates that schedule padding has become a structural feature of liner operations rather than a temporary adjustment.
The consequence is clear: even when reported delays appear manageable, underlying network friction remains high.
Congestion spreads across key hubs
Global port congestion has climbed to a four-year high, with over 10% of the global fleet waiting at anchorage. Across Asia, a combination of adverse weather, vessel bunching, and strong demand is driving delays higher.
The most affected locations include China’s major gateways, where waiting times are stretching into multiple days, transhipment gateways such as Singapore and major feeder hubs including Colombo and Busan, where congestion is disrupting regional connections
These delays are not isolated. They are cascading across schedules, forcing carriers to omit port calls, adjust rotations, and roll cargo onto later sailings.
In many cases, even minor delays of two to three days are proving difficult to recover across multi-port loops, amplifying disruption further downstream.
Demand keeps pressure on the system
Unlike previous congestion cycles driven purely by operational disruption, current conditions are being reinforced by strong demand.
Front-loading on key trades, particularly into the US, and resilient Asia–Europe volumes are increasing cargo dwell times and yard utilisation at ports. This reduces productivity and extends vessel turnaround times, further tightening effective capacity.
The result is a feedback loop:
- Higher demand increases congestion
- Congestion reduces effective capacity
- Reduced capacity pushes freight rates higher
This dynamic is already feeding into both spot and contract pricing across major trades.
Nhava Sheva: disruption intensifies
One of the most acute examples of this disruption is currently unfolding at Nhava Sheva (JNPT), a critical gateway for Indian exports.
Severe monsoon conditions, including high winds and heavy rainfall, have significantly impacted both terminal and land-side operations. Productivity across multiple terminals has slowed sharply, with some suspensions and intermittent halts due to unsafe operating conditions.
The situation has been further exacerbated by a serious terminal incident, leading to a full suspension of operations at one facility pending investigation.
At the same time, land-side congestion has intensified, with flooding restricting access to terminals. With traffic being actively controlled several kilometres from the port cntainer gate-in and evacuation processes are heavily delayed. This combination of marine and land-side disruption is creating a severe bottleneck.
In a market where true delays are hard to see and even harder to manage local expertise and global coordination are essential.
Metro supports customers by:
- Monitoring real-time port congestion and schedule disruption
- Providing early warning of delays at key hubs such as Nhava Sheva
- Securing alternative routings and contingency solutions
- Advising on booking strategies to reduce rollover risk
With teams on the ground in key origin markets and close carrier relationships, we help customers stay ahead of disruption and overcome challenges.
To discuss your global shipping requirements or current shipments through particular hubs, EMAIL Andrew Smith, Managing Director.
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