Pavement Roughness Measurement
Smartphone Application

BumpRecorder
Pavement Maintenance Management
Cloud service

BumpRecorder Web
Simple・Speedy・Low cost
Next Generation Maintenance Management Service

Winning Tokyo Venture Technology Award 2015,
the Special Award 2014
More rational and efficient roughness measurement available.
Supporting Pavement Maintenance Management.
Roughness e.g. IRI measurement available by general smartphones and cars.
Auto calibration function makes prior calibration driving free.
Results available on online maps about 10 minites later after data upload.

Simple and convenient by Smartphones
Pavement Roughness Measurement
Smartphone application BumpRecorder iscompatible with most models.
Free installing available through Google Play
Simple ManualFix your smartphone firmly on a place like adashboard. Setting style is flexible. (See thepicture.)

Flatly Vertically HorizontallyFlexible Setting Style

Further accurate measurement available
The existing response type method has difficulty in getting accurate measurement
without calibration driving because of the impact of suspension, caused by thedifference of car models or driving speed. In order to solve this problem, they areusing compensation formula (correlation formula), which forces us to drive pavement
whose conditions are already known before measurement. It requires much time andcosts.
Our company can offer the technique to get stable results,
regardless of the difference of car models or driving speed,automatically estimating vehicle suspension hardness andcalculating an up-down motion on the center of tires, fromthe acceleration data through measurement driving. This
technique enables users to get accurate data easily.

Bump

Others

Smart
phone

SprungSpring Effectaccelerationacquired

Autoestimation

Smart
phone

SprungEach second

acceleration

Standarddeviationacquired

Unsprung
estimated

Roughness
Accurate
calculation

Correlation
formula Calculated

IRI etc.

Roughness

IRI etc.

Big data
Analysis

Big data
Analysis?

bycorrelation

100m IRI measurement examples
variation ÷ average=0.3÷2=0.15=±8%variation ÷ average=1.2÷4.4=0.27=±14%variation ÷average=0.4÷1.3=0.31=±15%variation ÷ average=0.8÷5.2=0.15=±8%

Main Road（40~60km/h）

Community road（20~40km/h）

Easily confirm data on Web browsers
Data measured by BumpRecorder can be easily confirmed on BumpRecorder Web,
our company’s Web analysis service.
The existing service e.g. an inertial profiler requires several days to get the result, on
the other hand, our Web analysis service can offer results quickly about 10minites
later after uploading, it is almost on a real-time basis.
The measured results of roughness e.g. IRI can be shown with OpenStreetMap,
which will enable users to immediately realize road conditions .
These data can be shown on the base ofduration and direction. Also users canchoose specific areas and see the result byhistogram, a distance base roughness
graph or a time trend graph.

HistogramDistance base graphTime trend graph

Available large data storage
BumpRecorder Web has already stored a large quantity of measurement data up to
1.8million km, and it is computing under good response. BumpRecorder can be usedlarge data e.g. daily long distance measurement.

Data Output Possible
Roughness data e.g. IRI can be confirm on Web screen, which can be also
downloaded as a text file. API enables users to connect their own system.
BumpRecorder can provide the necessary data in a necessary form necessarytiming.

Clear Fixed Rate System for frequency use
The conventional rate system of Pavement Roughness Measurement is meter rate
charging system based on measured distance.
Such system requires huge costs in case of regular Pavement Roughness
Measurement over all roads in charge, which is not feasible.
Our fixed rate system enables users to measure roads requiring regular
maintenance as much as necessary when needed.
A monthly charge is fixed for the your management road length, regardless of thenumber of smartphones used and the frequency in use of measurement.
* Charge for each direction* No additional charge for multi-lane roads

Meter rate charging system for one time usage
Calculating data of the roughness e.g. IRI based on actual measured distance/meter
rate charging system is available.
Also the acquired data can be analyzed and offered by an indicator on users’ request.
System customize is available. Please ask us about the detail.

Related productPhoto Report Service
This Smartphone and Web service enables uses to get photos with GPS Informationand comments taken by a smartphone camera and to manage it on Web map.
These services are both available with BumpRecorder Web

BumpRecorder Co., Ltd.
1-59-6-102 Akabane
Kita-ku Tokyo Japan

TEL : (+81) 3-6454-4255
e-mail : info@bumprecorder.com
Web : www.bumprecorder.com