Accurate and Fast IRI Survey for Roads and Bridges with TPL

Road and Bridge Survey with TPL | Accurate IRI Measurement to ASTM Standards

Measuring pavement roughness (IRI) on bridges is highly complex due to structural vibration and flexibility.
These factors can cause conventional survey methods to produce inaccurate results that do not reflect actual pavement conditions.

TPL (Transverse Profile Logger) is specifically designed to support both road and bridge surveys by:

• Delivering accurate data even in vibration-prone environments
• Overcoming limitations of traditional survey methods
• Complying with international standards such as ASTM E1703

This ensures stable and reliable measurement of IRI, rutting, and surface texture.

Rutting Analysis

• Automatically detects rut depth
• Reduces risks of water accumulation and pavement deformation

IRI Measurement

• Evaluates pavement smoothness according to standards
• Applicable for both roads and bridges

Surface Analysis (MPD / Texture)

• Measures surface texture for skid resistance evaluation
• Enhances road safety

Transverse Profile Analysis

• Captures full-width pavement profiles
• Supports analysis of deformation and load distribution

Key Advantages of TPL Technology

Work in Flow (No Road Closure Required)

• Operates under normal traffic conditions
• Minimizes disruption to road users

High-Speed Capability

• Survey speed up to 120 km/h
• Improves fieldwork efficiency

Ready-to-Use Digital Data

• Reduces manual processing steps
• Enables immediate analysis