The M4 is experiencing significant traffic delays and congestion as the first day of the summer holiday kicks off, with a vehicle fire causing disruptions and long queues. The incident, which occurred on the eastbound lanes from junction 25 B4596 Caerleon Road (Caerleon) to junction 24 A449 (Coldra) in Newport, has led to a chain reaction of delays and stop-start traffic. The fire, captured by Traffic Wales cameras, has caused heavy congestion and a 'pass with care' warning from Traffic Wales. The incident has also affected the Brynglas Tunnels, with half-hour delays reported on the westbound lanes before junction 26 A4051 (Malpas Road). The A40 from Salutation Square to Scotchwell roundabout in Haverfordwest is closed due to a crash, adding to the travel chaos. The situation is further complicated by the ongoing warm weather, which is expected to encourage a getaway for families. The heavy traffic is not limited to the M4, as other stretches of the motorway are also affected. The incident has highlighted the challenges of managing traffic during peak travel times and the potential impact of unexpected events, such as vehicle fires, on the flow of traffic. The situation underscores the importance of traffic management strategies and the need for drivers to be prepared for unexpected delays and congestion. As the summer holiday gets underway, it is crucial for drivers to plan their routes and allow for extra travel time to avoid the frustration of being stuck in traffic. The incident serves as a reminder of the need for efficient traffic management systems and the importance of being prepared for unexpected events during peak travel times.