What is the minimum runway centerline separation required for aircraft departing from parallel runways in a radar environment?

The minimum runway centerline separation required for aircraft departing from parallel runways in a radar environment is established to ensure safety during high-density operations. When departing from parallel runways, maintaining a separation of 2,500 feet is crucial to prevent wake turbulence and conflicts that might arise from the lateral emissions of aircraft, especially those that generate significant wake due to their size or performance. In a radar environment, this separation allows air traffic controllers to effectively monitor and manage the departures, facilitating safe and efficient air traffic flow while minimizing the risk of incidents related to proximity and wake turbulence.

The other options reflect distances that are either too low or require more stringent separation criteria beyond what is necessary in typical radar operations. The standard of 2,500 feet balances safety and operational efficiency, making it the correct choice for this scenario.