The sphere of influence of a service centre .eg clinic

2 answers

The sphere of influence of a service center (e.g) school, police station, clinic, hospital
The density of the customer population of center is high near the service center but decrease with increasing distance, due to the frictional effects of the distance (hypothesis)
The sphere of influence of a service centre e.g The density of the customer population of a service centre is high near the service centre but decrease with increasing distance, due to the frictional effect of the distances