Laser Crack Measurement System 4M (LCMS®-4M)

Cities and Counties need accurate pavement condition data for their road network every year as an input into their pavement maintenance planning process.

However, the inspection process is often time-consuming and entirely manual with Engineers hitting the streets on foot to visually inspect and record distress information manually.

Mobile Mapping Systems fail to meet this need because LiDAR-based inspections do not have sufficient resolution and accuracy to meet industry standards. As well, data processing is typically manual and requires the user to have pavement engineering-based knowledge.

Pavemetrics® LCMS®-4M MMS pavement sensor addon solves this problem by combining 3D triangulation technology with a fully automated workflow for reporting standards-compliant pavement condition scores ready for upload into city and county Pavement Management Systems (PMS).

Fully Automated Standards-Compliant Workflow

Pavemetrics® has developed a fully automated workflow that generates industry-standard condition ratings ready for use in your, or your client’s, PMS.

Automated detection and quantification includes: cracking (including sealed), rutting, potholes, patches, pavement markings and manholes and storm drains.

Detailed results are reported along with PMS-ready overall condition scores according to the PASER and the PSCI standards. The LCMS-4M is also able to capture and report profile and IRI. File output formats include JPEG, SHP (for GIS integration) and XML.

Simple to Deploy and Efficient to Use

The LCMS-4M is a single-sensor solution that can be easily added to your existing MMS platform and can receive positioning data from your existing GNSS and DMI (if equipped).

Operation is designed to avoid impact to existing mobile mapping operations and data collection speeds up to 100km/h (62mph) are supported, day or night.

Lane coverage is a full 4 meters (13.2 feet) and is fully compliant with the industry best practice of one pass per direction for pavement condition rating.

Superior to Visual Inspection and 2D Camera-based Approaches

LCMS technology combines 3D scanning laser and computer-based analysis to go beyond approaches based on subjective visual pavement inspection and/or 2D camera.

With the LCMS-4M, a 3D scanning laser is used to measure wheel-path rutting to the millimetre and to physically measure pavement distress dimensions (length, depth and width).

This approach creates more accurate, precise and repeatable inputs for Pavement Management compared to visual inspection and simple camera-based (cellphone or even commercial hardware) approaches.

The Most Widely Trusted Pavement Sensor Family

The LCMS-4M is part of the LCMS sensor family which leads the pavement inspection industry with more than 500 systems delivered to users in more than 45 countries around the world.

Key Features of the LCMS-4M

  • Simple installation and efficient field data collection that will not impact existing mobile mapping activities
  • Automatic detection and measurement of cracking (both sealed and unsealed)
  • Fully automated workflow from scan to PASER score, ASTM E3303 index and detailed distress
  • Roughness and IRI
  • Automatic rutting measurement
  • Automatic pothole detection and measurement
  • Automatic detection and measurement of raveling (an industry first)
  • Automatic measurement of macro-texture (MPD, MTD) in all 5 AASHTO bands
  • Pick-out detection
  • Bleeding detection and measurement
  • Delamination detection and measurement
  • Shoving detection and measurement
  • Sewer and storm-drain detection and inventory
  • Rumble strip detection and inventory
  • Edge drop off and curb detection and measurement
  • Joint detection and faulting measurement
  • Pavement type detection (asphalt and concrete)
  • Pavement marking detection and dimension measurement
  • GPS tagging of measurements and images (using Customer-supplied GPS)


  • E3303; Can automatically compute and report Pavement Surface Cracking Index



  • Can automatically computer and report 1-10 PASER score for each road section