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Fireworks Display Site Planner · Canadian Display Fireworks Manual (NRCan / ERD)

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Editing

Firing sites

A display may be fired from several positions under one approval. Add a site for each, then set its shell size and direction below.

Location — Site 1

Name

Click the map to place this site's firing point. Drag its pin to refine.

Latitude

Longitude

Next map click places the firing point.

Site type

Circular (vertical mortars)Oblong (15 deg angled mortars)

Circular: spectators may be at any point on the perimeter.

Firing direction (oblong)

Mortars angled 15 deg downrange — the fallout polygon extends in this direction. Set the bearing by clicking a downrange pin on the map, or by entering a compass heading directly.

Direction input modeMap pointCompass heading

Downrange latitude

Downrange longitude

Heading (° from true north)

Bearing: —

Display wind blows toward the rear of this firing line (clock 4-8, or 3-9 above 35 km/h — Figure 3.1)

Articles for this site

Maximum mortar size (Table 3-1)

Maximum emission-effect elevation (m, Table 3-4)

Mortar placement

Mortars are NOT properly buried/racked/barricaded (triples all distances per Table 3-1)

Wind (Tables 3-2 / 3-3)

One weather system for the whole display. Whether it counts as "rearward" is per site, since that is relative to each firing line's bearing — set it on each oblong site above.

Wind speed (km/h)

Table 3-1 is calibrated for ≤15 km/h wind. Above that, Table 3-2 (oblong) or 3-3 (circular) applies; above 40 km/h the display must be cancelled (Section 3.6).

Compute & check

"Find structures" queries OpenStreetMap via the Overpass API for nearby buildings, fuel stations, hospitals, and power lines, and checks each against every firing site.

Save / load / share

Load site plan (JSON)…

Requires a computed plan. The link points to a stored copy of the full plan (rings, polygon, structures) and lasts one year. Distances are recomputed from the stored inputs when the link is opened, so a plan always redraws under the current rules. Use Download for permanent archival.

Clears every firing site, all inputs, and any loaded shared link.

Satellite imagery © MapTiler. Map data © OpenStreetMap contributors. Distance rules from the Display Fireworks Manual (NRCan / ERD, Canada). This tool is an aid; it does not replace the judgement of the Supervisor in Charge or AHJ approval.

Computed distances

Place a firing point and select articles, then click Compute distances.

Detected structures

No search performed yet.

Compliance summary

Awaiting structure search.