Daily passenger arrivals at Heathrow Airport (LHR) average 150,000, with peak departures exceeding 180,000 during summer months. Transatlantic flights contribute 35%, while intra-European routes comprise 45% of total movements. Security checkpoints 3 and 5 experience longest queues. High-speed rail (HS2) project, connecting London (Euston station) to Birmingham (Curzon Street station), anticipates 300 daily departures with an average passenger load of 800 per train