: Long hours and physically taxing work contribute to high levels of burnout and fatigue [1, 6, 9].
: Many couriers prefer self-employment for its flexibility and the right to refuse tasks [4, 30]. COURIERS
As e-commerce continues to skyrocket, the industry is turning toward emerging technologies like Artificial Intelligence (AI) , machine learning, and digital twins to improve efficiency [15, 23]. New niches are also appearing, such as lottery couriers who legally fulfill ticket orders for customers via mobile apps, expanding the definition of what a courier can deliver [24]. : Long hours and physically taxing work contribute
: High-pressure delivery schedules can lead to traffic violations and increased injury rates [27]. New niches are also appearing, such as lottery
The Digital Lifeline: Understanding the Modern Courier In an era of instant gratification and global connectivity, couriers have evolved from simple messengers into the critical "foot soldiers" of the internet revolution [16, 21]. Whether they are navigating urban traffic on a bicycle or managing long-haul logistics in a van, these professionals ensure the seamless flow of goods, documents, and even life-saving medical supplies [8, 11]. The Evolution of the Role
Major global players like UPS, FedEx, DHL, and Amazon Logistics dominate the traditional shipping landscape, often utilizing a "hub and spoke" model for international reach [29, 32]. The Rise of the Gig Economy
Despite their importance, couriers face numerous occupational hurdles: