Why are the toilets on the train connected directly to the tracks?

No environmental regulations

Gravity-based toilets required:Autos & Vehicles

No pumps

No moving parts

Very little maintenance

Minimal added weight

Waste simply dropped onto the ballast (the gravel under the tracks), where it would be broken down by weather and time.

By the standards of the era, this was considered acceptable—and even hygienic compared to alternatives.

Why It Didn’t Seem Like a Problem Back Then
Several factors made direct discharge less controversial in the past:

1. Lower Train Frequency
Trains were less frequent, meaning waste accumulation was minimal.

2. Open-Air Infrastructure
Tracks were outdoors, not sealed environments.

3. Different Hygiene Standards
Public sanitation expectations were far lower than today’s.

4. Rural Routes
Many tracks ran through countryside, not dense cities.