gatling scenarios

Hi all,

can anyone help me to understand the below gatling scenarios.

Total users: 500

Ramp up: 100 every 5 mins. (Full ramp up in 25 mins)

Login/Start Item at Full Ramp up - 500/min (8 logins/start API/second)

Delay in Next Item - 8 seconds. (Each user answers 7-8 items a min)

Target for Next Item at Full Ramp up - 4000 req/min.

Steady traffic for an hour.

Users to loop through the test and start another right after.

Ramp Down - 5 mins.