QZSS adds one geosynchronous and three tundra orbit satellites so depending on where you are in the city, you could be seeing two or more QZSS satellites. It's

QZSS adds one geosynchronous and three tundra orbit satellites so depending on where you are in the city, you could be seeing two or more QZSS satellites. It's not going to replace GPS but its going to help with getting a quicker location solution than not having it. Something where you have beacons on every major intersection would be a better step for a city to introduce. The beacons would just be sending compatible messages so there is no need for additional hardware. If the roads are straight enough, you could see multiple beacons plus whatever satellite is overhead.