Road course · Italy
ACI Vallelunga Circuit
ACI Vallelunga Circuit is a road course in Italy. OpenStreetMap maps 6 layouts here, the longest 2.54 mi (4.08 km). Below: the map, every corner with a computed line, the elevation, and where to stay and eat.
- 4.08
- Kilometres
- 10
- Corners
- —
- Ft of elevation
01Track map
ACI Vallelunga Circuit track map
Circuito Maggiore Vallelunga
Layout name from an OpenStreetMap circuit relation.
- Mapped length
- 2.54mi
- 4.08 km
- Direction
- Clockwise
- From OSM one-way tagging.
- Start/finish line
- Mapped · unverified
- Placed by OpenStreetMap mappers and not verified on site. TRACK asks you to confirm or move it before timing laps here, when you’re stopped.
- Corners
- 11
- Inferred from curvature, not official turn numbers
- Sectors
- 3
- Estimated, near each third of the lap
Source geometry: OpenStreetMap ↗. Something wrong? Fixing it in OpenStreetMap improves it for everyone.
02Overview
What ACI Vallelunga Circuit is like to drive.
The circuito maggiore vallelunga layout at ACI Vallelunga Circuit is 2.54 miles with 10 corners worth setting up for. A generic track-day car in our model brakes hard 8 times a lap and is at full throttle for about 48% of the distance; the longest straight runs roughly 1837 ft.
3 of the corners are slow (under 50 mph in the model), 2 are fast (over 75 mph). There are hairpins where exit speed matters more than entry. The corner notes below come from the mapped geometry, not from local knowledge; we’ll add a researched guide for ACI Vallelunga Circuit later.
03Lap at a glance
Where the speed is, and where the hills are.
- Length
- 2.54mi
- Elevation range
- —
- Steepest grade
- —
- Braking zones
- 8model
- Full throttle
- 48% model
- Longest straight
- 1837ft
The speed trace is a model, not a real lap: a generic track-day car (about 1.1 g of cornering grip, 1 g braking, 150 W/kg) driven on the computed line through an assumed 12 m wide track. Use it to see where the braking zones and flat-out sections are, not to predict your speeds. Elevation data for this track isn’t loaded yet.
04Corner by corner
The corners at ACI Vallelunga Circuit.
TRACK’s own corner numbering (C1, C2…), found from the curvature of the mapped centerline. It isn’t the official turn numbering. Each diagram shows the computed line: the minimum-curvature path through an assumed 12 m wide track. It’s a geometric starting point. Your instructor’s line comes first.
- C1
Curvone
↱ RightfastsweeperTRACK numbering
A fast right-hand sweeper that turns about 59°, tightening to a radius of roughly 94 m (308 ft). The model car brakes for about 150 m (492 ft), from 130 to 93 mph. The computed line turns in from the left side, takes an early apex, about 25 m before the geometric apex, and lets the car run out to the left on exit.
- Turns
- 59° right
- Tightest radius
- 94 m
- Model speed
- 130 → 93 mph
- Braking (model)
- 150 m
- Grade
- —
- C2
Cimini 1
↱ RightmediumhairpinTRACK numbering
A medium right-hand hairpin that turns about 170°, tightening to a radius of roughly 32 m (105 ft). The model car brakes for about 165 m (541 ft), from 125 to 50 mph. The computed line turns in from the left side, takes an apex close to the geometric apex, and lets the car run out to the left on exit.
- Turns
- 170° right
- Tightest radius
- 32 m
- Model speed
- 125 → 50 mph
- Braking (model)
- 165 m
- Grade
- —
- C3
Campagnano
↱ RightmediumcornerTRACK numbering
A medium right-hand corner that turns about 185°, tightening to a radius of roughly 45 m (148 ft). The model car barely brakes here, carrying about 52 mph: a lift or a confident throttle balance. The computed line turns in from the left side, takes a late apex, about 5 m after the corner’s geometric apex, and lets the car run out to the left on exit.
- Turns
- 185° right
- Tightest radius
- 45 m
- Model speed
- ≈ 52 mph
- Braking (model)
- Lift / none
- Grade
- —
- C4
Soratte
↰ LeftslowcornerTRACK numbering
A slow left-hand corner that turns about 129°, tightening to a radius of roughly 19 m (62 ft). The model car brakes for about 125 m (410 ft), from 105 to 38 mph. The computed line turns in from the right side, takes an apex close to the geometric apex, and lets the car run out to the right on exit.
- Turns
- 129° left
- Tightest radius
- 19 m
- Model speed
- 105 → 38 mph
- Braking (model)
- 125 m
- Grade
- —
- C5
Trincea
↰ LeftfastcornerTRACK numbering
A fast left-hand corner that turns about 50°, tightening to a radius of roughly 78 m (256 ft). The model car barely brakes here, carrying about 75 mph: a lift or a confident throttle balance. The computed line turns in from the right side, takes an apex close to the geometric apex, and lets the car run out to the right on exit.
- Turns
- 50° left
- Tightest radius
- 78 m
- Model speed
- ≈ 75 mph
- Braking (model)
- Lift / none
- Grade
- —
- C6
Semaforo
↱ RightslowhairpinTRACK numbering
A slow right-hand hairpin that turns about 193°, tightening to a radius of roughly 36 m (118 ft). The model car brakes for about 50 m (164 ft), from 78 to 43 mph. The computed line turns in from the left side, takes an early apex, about 75 m before the geometric apex, and lets the car run out to the left on exit.
- Turns
- 193° right
- Tightest radius
- 36 m
- Model speed
- 78 → 43 mph
- Braking (model)
- 50 m
- Grade
- —
- C7
Tornantino
↰ LeftslowhairpinTRACK numbering
A slow left-hand hairpin that turns about 186°, tightening to a radius of roughly 14 m (46 ft). The model car brakes for about 75 m (246 ft), from 78 to 31 mph. The computed line turns in from the right side, takes an early apex, about 10 m before the geometric apex, and lets the car run out to the right on exit.
- Turns
- 186° left
- Tightest radius
- 14 m
- Model speed
- 78 → 31 mph
- Braking (model)
- 75 m
- Grade
- —
- C8
Esse
↰ LeftmediumchicaneTRACK numbering
A medium left-hand chicane that turns about 60°, tightening to a radius of roughly 34 m (112 ft). The model car brakes for about 65 m (213 ft), from 81 to 55 mph. The computed line turns in from the right side, takes a late apex, about 5 m after the corner’s geometric apex, and lets the car run out to the right on exit.
- Turns
- 60° left
- Tightest radius
- 34 m
- Model speed
- 81 → 55 mph
- Braking (model)
- 65 m
- Grade
- —
- C9
Esse
↱ RightmediumchicaneTRACK numbering
A medium right-hand chicane that turns about 65°, tightening to a radius of roughly 49 m (161 ft). The model car brakes for about 65 m (213 ft), from 81 to 55 mph. The computed line turns in from the left side, takes an early apex, about 15 m before the geometric apex, and lets the car run out to the left on exit.
- Turns
- 65° right
- Tightest radius
- 49 m
- Model speed
- 81 → 55 mph
- Braking (model)
- 65 m
- Grade
- —
- C10
Roma
↱ RightmediumhairpinTRACK numbering
A medium right-hand hairpin that turns about 181°, tightening to a radius of roughly 43 m (141 ft). The model car brakes for about 125 m (410 ft), from 99 to 55 mph. The computed line turns in from the left side, takes an apex close to the geometric apex, and lets the car run out to the left on exit.
- Turns
- 181° right
- Tightest radius
- 43 m
- Model speed
- 99 → 55 mph
- Braking (model)
- 125 m
- Grade
- —
05Configurations
Every mapped loop at ACI Vallelunga Circuit.
TRACK finds each closed loop in the OpenStreetMap raceway network. Named layouts come from OSM circuit relations; the rest are named by length, and some may be combinations the venue never runs. Your first session confirms which one you drove.
Circuito Maggiore Vallelunga
2.54 mi4.08 kmClockwiseS/F Mapped · unverified
Layout B · 3.9 km
2.45 mi3.94 kmClockwiseS/F Mapped · unverifiedName inferred
Layout C · 3.3 km
2.08 mi3.34 kmClockwiseS/F Mapped · unverifiedName inferred
Layout D · 3.1 km
1.90 mi3.06 kmClockwiseS/F EstimatedName inferred
Layout E · 2.4 km
1.49 mi2.40 kmClockwiseS/F EstimatedName inferred
Layout F · 2.2 km
1.38 mi2.22 kmClockwiseS/F EstimatedName inferred
06Time it with TRACK
Drive ACI Vallelunga Circuit. TRACK knows where you are.
No setup and no transponder. Start a session in the paddock and TRACK recognises ACI Vallelunga Circuit and the layout from your GPS trace, then times every lap and sector with a live delta to your best.
- 1DetectTRACK matches your first few hundred metres against every mapped layout at ACI Vallelunga Circuit, including shared pavement between configurations.
- 2Confirm the lineThe start/finish line here is mapped · unverified. When you’re stopped, TRACK shows it on the map: accept it or tap to move it. You’re never asked while driving.
- 3Laps, timed retroactivelyLaps you drove before confirming are timed from the recorded trace, so you don’t lose your first session.
- 4Go furtherSync a GoPro for video with telemetry and let TRACK Engineer point out where the time is. External 10–25 Hz GPS receivers for tighter sectors are awaiting hardware validation.
- Venue and layout detection is tested on simulated drives over real OpenStreetMap circuits, not yet in a real car. Compatible GPS receivers
07Plan your trip
Getting there, staying, eating.
Nearby places for ACI Vallelunga Circuit haven’t been loaded yet.
08Track days
Find an open track day at ACI Vallelunga Circuit.
TRACK doesn’t copy event listings. An on-page calendar will come with an organizer data partnership.
Before your first day here
09Nearby tracks
Closest mapped venues.
- Pista del LittorioItaly · 16 mi away
- circuito internazionale di ViterboItaly · 47 mi away
- Autodromo dell'UmbriaItaly · 67 mi away
- Misano World Circuit Marco SimoncelliItaly · 125 mi away
Straight-line distance between venues. All 889 tracks
FAQ
ACI Vallelunga Circuit, answered.
How long is ACI Vallelunga Circuit?
OpenStreetMap maps 6 closed loops at ACI Vallelunga Circuit, from 1.38 mi to 2.54 mi (4.08 km). These are mapped centerline lengths; the venue’s published figures can differ slightly.
Which direction does ACI Vallelunga Circuit run?
The main mapped layout runs clockwise, from one-way tagging in OpenStreetMap. Check the event’s driver briefing: some venues run reverse-direction days.
Can I time laps at ACI Vallelunga Circuit with my phone?
Yes, with the TRACK iPhone app (beta). It recognises ACI Vallelunga Circuit and the layout you’re driving from GPS, then times laps and sectors. A phone’s GPS is good for lap times; an external 10–25 Hz receiver tightens sector splits.
Where is the start/finish line at ACI Vallelunga Circuit?
The line TRACK uses comes from a start/finish point placed in OpenStreetMap. It isn’t verified on site, so the app asks you to confirm or move it before timing your first session here.
How do I find track days at ACI Vallelunga Circuit?
Clubs and organizers list HPDE, track days and club races on MotorsportReg. The venue’s own calendar (also linked) lists its events too. TRACK doesn’t list events itself.
Where can I stay near ACI Vallelunga Circuit?
This page lists hotels, campgrounds, restaurants, fuel and parts stores near ACI Vallelunga Circuit from OpenStreetMap, with straight-line distances. Book early for big event weekends.
Track geometry and nearby places: © OpenStreetMap contributors, available under the Open Database License 1.0 (via the TRACK Atlas, snapshot 2026-10-17). Elevation: USGS 3DEP (public domain). Lengths are mapped centerlines, not official figures. The computed line and speed trace are a model. No start/finish line has been verified on site.
TRACK is not affiliated with or endorsed by ACI Vallelunga Circuit, MotorsportReg or any business listed here. The venue name identifies the location only and belongs to its owner. TRACK shows no lap records or official results for this venue. Driving advice is general: your instructor, the event’s rules and the venue’s rules come first.