1. The real time mapping system comes to life
LIFE DYNAMAP
The real time mapping system comes to life
P. Bellucci, L. Peruzzi, G. Zambon
ANAS S.p.A. – Research and Development Area, Rome (Italy)

2. PROJECT SPAN 2014-2019 BUDGET 2.230.319 € EC CONTRIBUTION
WHAT IS THE DYNAMAP PROJECT ?
PROJECT SPAN
BUDGET €
EC CONTRIBUTION
€ (48%)
The DYNAMAP Project is a LIFE+ project aiming at developing a dynamic noise mapping system able to detect and represent in real time the acoustic climate of road infrastructures.

3. PROJECT OBJECTIVE
The main objective is to ease and streamline the noise mapping process through the development of a low cost sensors system able to automatically update the noise maps in real time.
MILAN
ROME

4. THE PROJECT IDEA
Noise Source
The core idea of the project is based on the possibility of updating the noise maps by scaling pre-calculated
BASIC NOISE MAPS
Traffic
Meteo
Low cost SLM

5. BASIC NOISE MAPS

6. BASIC NOISE MAPS
1st Stretch
2nd Stretch
3rd Stretch
MAPPING AREA
Sum

7. BASIC NOISE MAP UPDATE
0 dB
+ 2 dB
Sum
-1 dB
SCALE AND SUM

8. BASIC NOISE MAPS PREPARATION1
Split the road network in elementary noise sources 2
Generate a unique grid for the whole pilot area 3
Prepare a unique buffer each side of the road as calculation area 4
Calculate the noise maps for each elementary source

9. BASIC NOISE MAPS ID
LAT
LONG
NS1
dB(A)
NS2
NS3 …
NSN
Leq T
0001
X0001
Y0001
L11
L12
L13
L1N
LeqR1
0002
X0002
Y0002
L21
L22
L23
L2N
LeqR2
9999
X9999
Y9999
L99991
L99992
L99993
L9999N
LeqR9999

10. BASIC NOISE MAP UPDATE ID
LAT
LONG
H (m)
Leq dB(A)
Rif01
X0001
Y0001 H1
Leq1
Rif02
X0002
Y0002 H2
Leq 2 …
RifN XN YN HN
Leq N
The update of the noise maps is achieved by summing up the difference between the measured noise levels and the calculated noise levels at a receiver points, corresponding to the position of the monitoring devices.

11. BASIC NOISE MAPS
Defining the number and type of basic noise maps in the suburban area of Rome
NUMBER OF INDEPENDENT NOISE SOURCES
METEOROLOGICAL CONDITIONS
TRAFFIC CONDITIONS

12. x 2=12 Working Days Week-end Days BASIC NOISE MAPS
Meteorological and traffic conditions
6 possible scenarios, corresponding to the main propagation conditions, were defined:
Working Days
Week-end Days
x 2=12
Homogeneous Conditions
North Wind Sector
South Wind Sector
Favorable Conditions
East Wind Sector
West Wind Sector

13. 5 min 15 min 60 min BASIC NOISE MAPS
Defining the number and type of basic noise maps in the agglomeration of Milan
From 7 am to 9 pm
5 min
From 9 pm to 1 am
15 min
From 1 am to 7 am
60 min

14. THE DYNAMAP SYSTEM Wireless noise sensors
Data collection. Data sent by the sensors are analysed, processed and stored on a server
The processed signals are used to scale the basic noise maps . +
Pre-calculated spatial noise map of Source 1
Sound level of source 1
Sound level of source n
Pre-calculated spatial noise map of Source n

15. High computation capacity sensors
DYNAMAP SYSTEM COMPONENTS
Low cost monitoring devices
High computation capacity sensors
Low computation capacity sensors

16. ANOMALOUS NOISE EVENTS
THE CLEAN-UP FUNCTION
Development of the ANED (Anomalous Noise Events Detection) algorithm
The algorithm is able to discern three main signal categories
ROAD TRAFFIC NOISE
BACKGROUND CITY NOISE
ANOMALOUS NOISE EVENTS

17. SENSORS MANAGEMENT SOFTWARE

18. DATA COLLECTION AND STORAGE
THE WEB GIS SOFTWARE APPLICATION
DATA COLLECTION AND STORAGE
MAPS SCALING AND SUM
PUBLIC INFORMATION

19. NEXT STEP
1 year TEST