ROMDAS (ROad Measurement Data Aquisition System) - Pavement & Road Surveying Equipment

ROMDAS Laser Profilometer

ROMDAS Overview

ROMDAS® (ROad Measurement Data Acquisiꢀon System) has been developed by

Data Collecꢀon Ltd. (DCL) as a low cost modular system designed to collect road

and pavement data using any vehicle. ROMDAS oﬀers great ﬂexibility by allowing

users to add or remove modules depending on their speciﬁc data collecꢀon

needs. Over the last several decades ROMDAS has been a leader of integraꢀng

new data collecꢀon technology and

providers of innovaꢀve technology for

measuring and managing roads

with over 200 units in use in over 60

countries, ROMDAS has a level of

reﬁnement rarely found in compeꢀng

systems.

ROMDASꢀ canꢀ beꢀ usedꢀ forꢀ theꢀ

following:ꢀ

 Roughness surveys;



 Transverse proﬁle/ruꢁng

surveys;



 Collecꢀng surface texture data

(

MPD or SMTD)

 Condiꢀon raꢀng surveys;



 Locaꢀon Referencing (spaꢀal

GPS/GNSS data or linear LRP

data)



 Video logging surveys (right‐of‐

way and pavement view);

 Road geometry surveys;



 Automated crack detecꢀon and

3D pavement modelling;



 Travel ꢀme and congesꢀon

surveys;

 Inventory and asset surveys;



 Recording locaꢀons with digital

photographs;

The DCL team has a wealth of

knowledge and experience available

to new users for customising systems

to meet speciﬁc needs and providing

on‐going technical support and

advice to exisꢀng users.

ROMD_R_oA_u_g_hS_n_e_sL_s_aa_n_ds_oe_p_tr_i_o_n_aP_l_mr_a_co_r_of_-_ti_e_xl_to_u_r_emeter

The ROMDAS Laser Proﬁlometer module is a Class I Inerꢀal Proﬁler and

conforms to ASTM‐E950. It uses a laser and accelerometer combinaꢀon to

measure the longitudinal elevaꢀon proﬁle of the road with very high degrees

of accuracy at highway speeds. The proﬁle is then analysed to calculate

Internaꢀonal Roughness Index (IRI) values.

providers of innovaꢀve technology for

measuring and managing roads

The ROMDAS Laser Proﬁlometer is an excepꢀonally portable system and can

be used for; construcꢀon control surveys, large scale network surveys or

generally whenever high accuracy roughness data is required.

The latest version is extremely lightweight and portable, weighing only 3 kg,

and oﬀering excepꢀonal value for money when purchased with the central

ROMDAS system. The ROMDAS system with Laser Proﬁlometer module is

one of the most cost eﬀecꢀve laser based systems for recording and

analysing roughness data available in the market. With no periodic

calibraꢀon required the Laser Proﬁlometer saves ꢀme and money when

collecꢀng high accuracy roughness data.

Optional Upgrades

MPDꢀorꢀSMTDꢀTextureꢀUpgradeꢀ

ROMDAS Lasers can be upgraded to

measure macro‐texture in terms of

Mean Proﬁle Depth (MPD) or Sensor

Measured Texture Depth (SMTD).

SMTD texture can be measured using

the standard lasers, while the MPD

texture upgrade includes replacing

the standard Laser unit with a higher

speed laser.ꢀ

Oꢁen single point laser proﬁlers use a single axis (verꢀcal) accelerometer.

The ROMDAS Laser Proﬁlometer uꢀlizes a three axis accelerometer which

helps ﬁlter inaccuracies caused during cornering or vehicle wander.

Thanks to ROMDAS’ customisable design, the system can be purchased as a

single (i.e. measure 1 wheel path) or dual laser setup (i.e. measure 2 wheel

paths) depending on customer requirements.

AddiꢁonalꢀLasersꢀ

Addiꢀonal lasers can be purchased

separately to give mulꢀple road

proﬁles.

Features and Benefits:





Extremely Portable weighing

around 3kgs,





World Bank Class 1 Proﬁler,

Modular opꢀon available,

3 Axis accelerometer,

Highly compeꢀꢀve pricing,

Easily customizable to include

other modules such as: GPS,

Video Transverse

Logging,

Proﬁler, Geometry...

ROMDAS Laser Profilometer

Components

The Laser Proﬁlometer is comprised of the following components:



 A high resoluꢀon DMI for data synchronisaꢀon,



A Class 3B 48 kHz Laser and Accelerometer unit,

All necessary power and communicaꢀon cables,

providers of innovaꢀve technology for

measuring and managing roads





External vehicle mounꢀng,

Laser conﬁguraꢀon cable.

Installation

The Laser Proﬁlometer does not require a specialised vehicle, however it is

easier to install if the vehicle has a trailer mounꢀng hitch installed to hold the

mounꢀng bar.

Technical Specifications

ScanꢀRateꢀ

48 kHz

LaserꢀClassꢀ

PCꢀInterface

Conﬁguraꢁon

Class 3B

Ethernet

Laser elevaꢀon with integrated Accelerometer Inerꢀal Reference

Standoﬀꢀ

245 mm

Rangeꢀ

500 mm (+/‐ 250 mm)

0.01% of full scale

+/‐ 0.01 m/km

IP65 (MEMA4)

Resoluꢁonꢀ

ResoluꢁonꢀIRIꢀ

Environmentꢀ

Powerꢀ

12 V DC 1 A

Weightꢀ

3 kg (excluding mounꢀng beam)

Dimensionsꢀ

170 mm x 120 mm x106 mm (main enclosure, ex. Mounꢀng beams)

Internaꢀonal Roughness Index (IRI) & Raw longitudinal proﬁle

Outputsꢀ

OutputꢀFormatꢀ

MS Access .MDB (exportable to excel and most other 3rd party

programs), .ERD ﬁles (viewable in ProVal for further proﬁle analysis)