Half-time congestion is a design outcome rather than a management failure. The concourse either has the capacity to absorb a sudden surge or it does not.
The surge is extremely concentrated
A stadium empties its seats into the concourse within a few minutes of the whistle, and returns them just as quickly before play resumes.
That produces a peak flow far higher than at any other point in the event, including arrival, which is spread across an hour or more.
Designing for average occupancy therefore guarantees failure, and concourses are sized against the peak rather than against the total attendance.
Circulation and queuing compete for space
A concourse serves two conflicting purposes: moving people between the seats and the exits, and holding people who are standing still to buy something.
Queues form perpendicular to the flow, so a counter placed badly can block a route that thousands of people need to use.
Modern layouts separate the two by recessing service points into alcoves, keeping the queue out of the circulation path entirely. Toilets are set back for the same reason, since a queue at a doorway blocks a corridor as effectively as a wall.
Why older stadiums struggle
Grounds built before large concourses were expected have narrow passages beneath the stands, often with structural columns positioned inconveniently.
Widening them is usually impossible without rebuilding the stand, since the space is defined by the structure holding the seating above.
Operators compensate with more service points, staggered provision and by opening earlier, which reduces the peak without changing the underlying capacity. Kiosks are sometimes moved outside the stand entirely where the site allows it.
Service speed changes the arithmetic
A queue clears at the rate the counter can serve, so halving transaction time has the same effect as doubling the number of counters.
Cashless payment, pre-ordering and simplified menus all target that rate, which is why they have spread quickly across large venues.
The constraint then moves to the physical act of handing goods over, and layouts are redesigned around collection points rather than around tills.
Why it affects the whole business
Spending at an event is limited by how many transactions can physically be completed, not by how much spectators are willing to spend.
A concourse that cannot clear its queues leaves revenue uncollected while also producing the crowding that spectators complain about afterwards.
This is why concourse capacity features prominently in stadium comparisons, even though it is invisible from the seats and never appears in a highlights package.
