Disclaimer

The tools on this website are developed as learning aids, offering back-of-the-envelope style calculations and relationships. They are not intended for real-world use, are unchecked, and provided without warranties or guarantees of accuracy.

Use them responsibly for illustrative or educational purposes only — the author accepts no liability for any outcomes resulting from their use.

Back of Envelope Tools

AI Tools

Pavements

Roads

Parking and Access

Drainage

Safety

Time Management

PM

Working Drafts