Siguranță notificare

Intrare stays in this browser and is not sent to a server.

Do not trust a single number. Verifică footing, wind, crown greutate, and the actual fall path first.
Keep clear of roads, drop-offs, dead branches, and power lines before the cut starts.
If the escape side looks unsafe, choose another direction and re-evaluate on site.

Silvicultură Instrumente

Arbore Doborâre Siguranță Zonă Calculator

Q: "Does it work without a connection?"

"Da. Toate calculations run in the browser, so it remains useful even when you are offline."

Q: "Can I use this for legal or regulatory judgment?"

"Nu. It is a field aid only. Follow site rules, local law, and the supervisor's instruction."

Q: "How does auto direction work?"

"Auto mode compares pantă and nearby obstacles, then chooses the more conservative of the uphill, cross-pantă, and downhill options. It does not replace site judgment."

Q: "What should I enter as obstacles?"

"Enter roads, structures, standing arbori, snags, or power lines that could affect the escape path."

Q: "What is included in the partajează URL?"

"Arbore înălțime, pantă, retreat direction, obstacle rows, and lightweight setări are encoded in the URL."

Q: "Can I mix meters and feet?"

"Da, if the unități are explicit. Keep a consistent notation whenever possible."

Enter arbore înălțime, pantă, retreat direction, and nearby obstacles to estimează retreat distanță and exclusion radius.

It is designed as a conservative field aid, so it stays useful offline and does not try to make a legal determination.

45° escape-angle guide

Foloseștes two arbore lengths as the base

Obstacle-aware

Dezactivatline friendly

How to use

1 Enter arbore înălțime and pantă. Pantă can be entered as angle, percent grad, or a 1:n raport.
2 Set the retreat direction to Auto, Uphill, Cross-pantă, or Downhill if you need to override the suggestion.
3 Add adjacent obstacles such as roads, structures, standing arbori, snags, or power lines.
4 Review the retreat distanță and exclusion radius, then use the rezultat only as a support aid.

Exemplu

24 m / 12° / auto / snag 6 m

Intrare

Arbore înălțime 24 m / pantă 12° / retreat direction auto / obstacle: snag 6 m

Rezultat

Uphill is selected. Retreat distanță is about 12.7 m, and exclusion radius is about 50.6 m.

80 ft / 18% / uphill / drum 10 ft

Intrare

Arbore înălțime 80 ft / pantă 18% / retreat direction uphill / obstacle: drum 10 ft

Rezultat

Uphill is selected. Retreat distanță is about 42 ft, and exclusion radius is about 167 ft.

Întrebări frecvente

Does it work without a connection?

Da. Toate calculations run in the browser, so it remains useful even when you are offline.

Can I use this for legal or regulatory judgment?

Nu. It is a field aid only. Follow site rules, local law, and the supervisor's instruction.

How does auto direction work?

Auto mode compares pantă and nearby obstacles, then chooses the more conservative of the uphill, cross-pantă, and downhill options. It does not replace site judgment.

What should I enter as obstacles?

Enter roads, structures, standing arbori, snags, or power lines that could affect the escape path.

What is included in the partajează URL?

Arbore înălțime, pantă, retreat direction, obstacle rows, and lightweight setări are encoded in the URL.

Can I mix meters and feet?

Da, if the unități are explicit. Keep a consistent notation whenever possible.

Glossary

Retreat distanță

The distanță you should move away from the stump once the cut is underway.

Exclusion radius

A conservative radius around the arbore and its fall path where people should stay out.

Retreat direction

The direction used for escape, such as uphill, cross-pantă, or downhill.

Pantă buffer

Extra distanță added to the retreat estimează because of pantă.

Obstacle buffer

Extra distanță added because nearby obstacles may block the retreat route.

Field judgment

The site-specific decision made by the crew after checking the actual conditions on the ground.

Calculation formulas

Reference angle = 45°
Effective lungime = arbore înălțime + pantă buffer + obstacle buffer
Retreat distanță guide = max(minimum retreat distanță, effective lungime × 0.5)
Exclusion radius guide = max(2 × arbore înălțime, 2 × effective lungime)
Pantă buffer = arbore înălțime × grad × direction factor
Grad = tan(pantă angle)

Nutice

This instrument is not a legal determination. Follow site rules, local law, and the supervisor's instruction first.
Do not rely on the numeric rezultat alone when there are roads, power lines, drop-offs, or other serious hazards nearby.
Activat steep slopes, confirm footing and escape routes before you move.
It works offline, but printing and location-related features still depend on the dispozitiv and browser.
Partajează URLs include your inputs. Do not put private site names into a link you plan to publish.