Which North Star metric should be chosen for car sharing?

For carsharing, the North Star metric is well represented by the indicator "Active Trips per Day" (Daily Active Trips). This metric reflects the actual usage of the service and is directly related to revenue and user satisfaction.

Other important metrics to consider include:

• The number of unique active users per day/month.
• Average trip duration.
• User retention rate.

But the number of active trips is the key indicator of the service's health and growth.