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. 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 95km/h (60mph) 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

  • Fully automated workflow from scan to PASER score, ASTM E3303 index and detailed distress
  • 3D laser-based detection and dimensional measurement of distress (cracking, rutting, potholes, etc.)
  • Objective, precise and highly repeatable distress reporting
  • Simple installation and efficient field data collection that will not impact existing mobile mapping activities


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



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