If I was the trash Czar & building this infrastructure I'd schedule dumpsters to be emptied when they are near full instead of on a schedule, triggered by LoRaWAN sensors.

So you'd pick up the full dumpsters & the total collections wouldn't rise because you could leave the not-full dumpsters longer.

You can't compare one time infrastructure costs to ongoing annual costs. Even a small increase in trash efficiency will pay for major outlays in a decade. Not to mention the quality of life improvements too numerous to be quantifiable.

Lets say the infrastructure costs a billion dollars... That's 6 months of the sanitation budget. a 5% increase in efficiency would pay for itself in one decade and pay dividends for the next 90