Noise, Vibration, and Harshness

Noise, Vibration, and Harshness

Noise, Vibration, and Harshness

Noise, Vibration, and Harshness

Get Started
51,166 ft2 Total Asphalt
8 Total Test Surfaces
500 ft Test Surface Dimensions

The Noise, Vibration, and Harshness Sector at SunTrax is designed for specific applications, such as sensor vibration behavior testing, sensor durability testing, and vibration control systems testing, utilizing varied pavement materials along 500 ft (152.4 m) of track.

Variations Beyond Your Requirements

The Noise, Vibration, and Harshness Sector, a collection of eight unique surfaces in one restricted area, is in the central-east portion of the complex and provides a secure location to test vehicle sensors’ exposure to noise, vibrations, and surface harshness. Supporting up to three users simultaneously, this area can be segmented into three smaller test spaces to provide maximum flexibility and efficiency.

In addition to the various surfaces is the adjacent External Noise Track, which consists of a two-lane straightaway with a loop at either end for continuous circulation. The interior of the northern loop is fully paved to test lateral force application and braking scenarios and can support up to six vehicles and ten users simultaneously, depending on the testing scenario.

Pavement Types

All tracks are 500 ft long (152.40 m) and 11.50 ft wide (3.50 m) and house the following surfaces:

Rough Asphalt Noise, Vibration, and Harshness Track
Rough Asphalt
A chipseal surface treatment of fine aggregate with segmented wheel paths provides a variety of conditions and textures purposed to replicate real-world asphaltic roadways.
Belgian Block Noise, Vibration, and Harshness Track
Belgian Block
Developed using 3D LiDAR scanning and raster grids, block elevation and horizontal placement are accurately configured to provide ideal conditions for ride and durability testing.
Manhole Cover Noise, Vibration, and Harshness Track
Manhole Cover
The depressed manhole covers allow for testing technology quality and durability of vehicle components and are configured on both the driver and passenger sides of the vehicle.
Speed Bump Noise, Vibration, and Harshness Track
Speed Bumps
This pavement features three speed bump variations including standard, trapezoidal and rounded design, ideal for vibration and durability testing.
Step-Up Step-Down Noise, Harshness, and Vibration Track
Step-Up Step-Down Pavement
A concrete surface that simulates faulted jointed portland cement concrete-surfaced pavements (JPCP) and iron angle-faced bridge joints to test the quality and durability of vehicle components.
Sine Wave Noise, Vibration, and Harshness Track
Sine Wave
Sine waves are produced by four-wheel paths, with one wheel path out of phase 0.5 wavelength, which simulates the bumps and dips that are common on city streets.
Concrete Freeway Noise, Vibration, and Harshness Track
Concrete Freeway
Replicating the smooth, uninterrupted ride of a highway, this pavement features a flat approach slab, a transition slab, curled/warped slabs, and a flat exit slab.
Damaged Asphalt Noise, Vibration, and Harshness Track
Damaged Asphalt
44 randomly spaced patches, with patch lengths ranging from 1 ft to 12 ft long, created to simulate the unevenness of a potholed, patched, or damaged road.

External Noise Track

The External Noise Track was designed to substantially conform with the ISO 10844 standard and features a drive lane that is 131 ft (40 m) long x 24 ft (7.30 m) wide asphalt surface, plus asphalt propagation areas that are 65 ft (20 m) x 65 ft (20 m). The track is a great alternative for developmental testing where cost and schedule are important considerations, and a certified track is not required. Homologation and legal testing can subsequently be completed on an ISO 10844-certified track.

Over head shot of the External Noise Track

Supported Vehicle Classes

The following AASHTO classifications for this sector are based on turning radii and other geometric constraints.

Class P

Vehicle Length: 19 ft 5.8 m

Class SU-30

Vehicle Length: 30 ft 9.1 m

Class SU-40

Vehicle Length: 39.5 ft 12 m

Class BUS-40

Vehicle Length: 40.5 ft 12.1 m

Class WB-40

Vehicle Length: 45.5 ft 13.8 m

Don’t See Your Vehicle Class?

Speak to a SunTrax representative if you have vehicle requirements that differ from the class listing above.

Contact Us

Technical Specifications

Overall Sector Dimensions
Lanes Size
Total Sector Area 97,918 ft2 (9,9096 m2)
Total Asphalt Area 51,166 ft2 (4,753.50 m2)
Total Area with Special Surfaces 4 46,752 ft2 (4,343.40 m2)
Radius of Turning Area 2 24 ft (7.30 m)
Lane 1 - Rough Asphalt
Size
Width 11.50 ft (3.50 m)
Length 500 ft (152.40 m)
Minimum Wheelpath 6.50 ft (2 m)
Maximum Wheelpath 30 ft (9.15 m)
Lane 2 - Belgian Block
Size
Width 11.5 ft (3.50 m)
Length 500 ft (152.40 m)
Block Variance ±1.50 in. (±3.80 cm)
Lane 3 - Manhole Cover
Size
Width 11.5 ft (3.50 m)
Length 500 ft (152.40 m)
Manhole Covers 8 - 24
Depression Variance 1.0 - 2.0 in. (2.54 - 5.08 cm)
Lane 4 - Speed Bump
Size
Width 11.5 ft (3.50 m)
Length 500 ft (152.40 m)
Type 1 Bump Length - Typical 10 ft (3 m)
Type 1 Bump Height - Typical 4 in. (10.16 cm)
Type 2 Bump Length - Trapezoidal 14 in. (35.56 cm)
Type 2 Bump Height - Trapezoidal 2 in. (5.08 cm)
Type 3 Bump Length - Rounded 15 in. (38.10 cm)
Type 3 Bump Height - Rounded 2 in. (5.08 cm)
Lane 5 - Step up Step Down
Size
Width 11.5 ft (3.50 m)
Length 500 ft (152.40 m)
Flat Approach Slab Length 17.5 ft (5.30 m)
Step Up 1 and Step Down 1 Height .375 in. (0.95 cm)
Step Up 1 and Step Down 1 Length 105 ft (32 m)
Flat Transition 1, 2, and 3 Length 15 ft (4.57 m)
Step Up 2 and Step Down 2 Height 0.75 in. (1.90 cm)
Step Up 2 and Step Down 2 Length 105 ft (32 m)
Lane 6 - Sine Wave
Size
Width 11.5 ft (3.50 m)
Length 500 ft (152.40 m)
Sine Amplitude 1.5
Sine Wavelength 2.5 ft (0.76 m)
Wheelpaths 4
Out of Phase Wheelpath One off by 0.50 x Wavelength
Lane 7 - Freeway Concrete
Size
Width 11.5 ft (3.50 m)
Length 500 ft (152.40 m)
Flat Approach Slab Length 17.5 ft (5.33 m)
Transition Slab 1 Length 15 ft (4.57 m)
Curled/Warped Slab Length 435 ft (132.58 m)
Transition Slab 2 Length 15 ft (4.57 m)
Lane 8 - Damaged Asphalt
Size
Width 11.5 ft (3.50 m)
Length 500 ft (152.40 m)
Patched Damage 44 Random Patches
Patch Lenght Variance 1 - 12 ft (0.30 - 3.65 m)
Patch Height Variance (Relative to Surrounding Pavement) -1.5 - ±0.4 in. (-3.81 - ±0.15 cm)
External Noise Track
Size
Drive Lane Width 24 ft (7.30 m)
Drive Lane Length 131.25 ft (40 m)
Total Length of Straightaway (East) 1,701 ft (518.50 m)
Length of Straightaway (West) 2,234 ft (680.90 m)
Length of Straightaway (Central) 1,991 ft (606.90 m)
Length of Loop (South) 127 ft (38.70 m)
Length of Loop (North) 311 ft (94.80 m)

Discover More

SunTrax is a large-scale, innovative facility developed by Florida's Turnpike Enterprise (part of the Florida Department of Transportation), dedicated to the research, development, and testing of emerging transportation technologies in safe and controlled environments.