Table 2.

Characteristics of the participating GP cooperatives

GP cooperative	A	B	C	D
City population	140,000	23,800	46,000	77,825
Rural population	35,000	79,500	39,350	100,652
Location of the GP cooperative in the area	Central	Peripheral	Peripheral	Peripheral
Greatest distance (km) to the GP cooperative	19	29**	25	28
Number of GP cars
Evening	2	1	1	1*
Night	1	1	1	1*
Daytime in the weekend	2	2**	1	2
Traffic measures	-use of bus lane	Flashing lights Siren Swing-down posts Short cuts Notice of new traffic obstacles	Flashing lights Siren Swing-down posts Short cuts Notice of new traffic obstacles	Flashing lights Siren Swing-down posts for access within city
Emergency number	Yes	Yes	Yes	Yes
Telephone doctor present	Yes	No	No	Yes
Urgency determined by	Triagist + Telephone doctor	Triagist	Triagist	Triagist + Telephone doctor

*During evenings and nights, one GP car is on immediate call from a private address

** During the day on the weekend, the GP car is parked on the perimeter, so that the greatest distance is reduced to 19.6 km