The Transport Layer is a crucial part of the networking model that ensures data is transferred reliably between devices. It manages the flow of information, breaking it into smaller packets and reassembling them at the destination. This layer also handles error detection and correction, making sure that the data arrives intact and in the correct order. Protocols like TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) operate at this layer. TCP is known for its reliability, ensuring that all packets are received, while UDP is faster but does not guarantee delivery. Together, they help applications communicate effectively over the internet.