Why do courier fares go up at lunch and dinner time?

Many on-demand couriers add a high-demand surcharge when many orders are booked at once, so the same trip can cost more at meal peaks.

• Lalamove Singapore example: an all-day high-demand surcharge applies per order, and its amount can change with demand, booking time and traffic.
• Other charges there: a flat S$0.50 platform fee per order and weekday CBD surcharges.
• This is one courier in one country. Check your own courier's price page.
• Set your customer fee with room to spare, not from an off-peak quote.