Pavement condition survey and assessment - McGill …grimes.mcgill.ca/content/documents/workshop/Lectures/Antonius... · 2 20.06.2013 Pavement condition survey and assessment

Pavement condition survey and assessment

A Canada-Germany Summer Workshop„Hands on sustainable urban mobility“

Montréal, June 2013

Dipl.-Ing. Antonius Schniering, TÜV Rheinland Schniering GmbH

20.06.2013 Pavement condition survey and assessment2

Motivation

70 million bicycles in Germany 30 billion kilometers travelled annually -> 10% of total trafficCycling is regarded to be emission free.

High political interest in�construction of new bikeways�extension of existing bikeways�improvement of bikeways to provide attractive cycle tours for tourists

National Bikeway Plan 2002 – 2012 - 2020 with an annual investment volume of approx. CAD 100 million to increase the traffic share of bicycles.

Bikeways adjacent to National and Federal Roads are believed to be worth more than CAD 1.2 billion.

For economical and safety reasons a regular survey and assessment of the bikeway network is necessary.

The survey results should be precise, objective and applicable for a management system.


ARGUS

More than 20 years experience with Pavement Monitoring on all kinds of roads in Germany and Europe with ARGUS

ARGUS – multifunctional pavement monitoring system


Survey types

manual

multifunctional

measurement

technology

walkways gravel roads federal state roads

bikeways urban roads national roads

occasionally systematic

object related network wide


The Goal

multifunctional

measurement

technology

walkways gravel roads federal state roads

bikeways urban roads national roads

occasionally systematic

object related network wide


� low efficiency� poor objectivity

Manual Survey

Source: State Governement for transportation Brandenburg


ARGUS – Agil I

ARGUS – Agil Imultifunctional measurement system for condition survey on bikeways, walkways and minor roads

equipped with:-HD digital video-laser distance sensors-accelerometers-inclinometers-gyroscop-GPS-sensor-odometer-safety lights

to record:-longitudinal eveness (both wheel tracks)-slope-surface distress-track documentation


ARGUS Agil I – Reference projects

� 2007 / 2008 Bikeways adjacent to Federal Roads in Brandenburg 1.700 kilometer

� 2009 Bikeways in the city of Münster20 kilometer

� 2009 / 2010 Bikeways adjacent to Federal Roads in Schleswig-Holstein2.100 kilometer

� 2010 Bikeways in Niedersachsen4.600 kilometer

� 2011 Bikeways in Schleswig-Holstein150 kilometer


ARGUS Agil Survey performance

Typical daily survey performance: 25 - 50 km

Typical survey season: April to September

Possible annual survey per device: approx. 4,000 to 6,000 kilometer (depending on weather and type of bikeway network)


ARGUS Agil II

Additional components compared to ARGUS Agil I

- extended operational range and speed

- macrotexture laser sensor

- additional rear video camera

- second GPS unit

- improved longitudinal evennessmeasurement system in both wheel tracks,independent of measurement speed (HRM principle, 1 profile point per cm)

- no transportation vehicle required for the project


ARGUS Agil Benefits

- Multi-functional (evenness, slope, surface distress, geo-referenced digital video, GPS)- High speed survey system – runs at the speed of traffic (measurement velocity up to 60 km/h) - Objective data (measurement technology instead of manual data entries)- Precise results (through the use of laser technology and high resolution digital video technology)- Geo-referencing by GPS, gyroscope and high resolution odometer (DMI)- No additional safety procedures required


Evaluation indicators and grid

In Germany indicators for bikeway condition surveys are not standardized yet. Common indicators are:-General uneveness-Steps-Dips-Cracks-Patches-Loss of Material

Surface distress data is captured on a 1m-grid basis.

For assessment data is aggregated to form longer sections (in general 10m on bikeways).

Source: Heller Ingenieurgesellschaft mbH


Reference system and projection


Surface distress cracks

Single crack and uneveness due to roots Multiple cracks


Surface distress cracks

RIS = cracks RISK = cracks with negative effect on riding comfort



Surface distress patches

FLI = patches FLIK = patches with negative affect on riding comfort



Loss of material

SUB = loss of materialSource: Heller Ingenieurgesellschaft mbH


Eveness steps

VER = steps Source: Heller Ingenieurgesellschaft mbH


Eveness dip

SEN = dip or settling



Paving stones distress

broken edges

misalignment

heaving

missing stones


Assessment

Indicators

Normalization

Grades

Weighting

Combination

TW1: usability and safety valueTW2: substance value

GW: overall value

mathematical combination


Digital video

Digital video pictures also allow for the determination of

- lane width

- signs (type, condition, position, height)

- markings (type, size, condition)

- street lights (type, position, height)

- drainage (type, position, condition)

- vegetation

- junctions, crossings, curbs

- bollards, obstacles, fences and more …


Presentation of results



Outlook

Extensions to ARGUS Agil- Additional laser scanner for

transversal evenness- Extended satellite navigation

(GLONASS, Galileo)- Extend inertial measurement unit Goal: to produce a digital 3D surface image

Establish a standard for condition survey and assessment of bikeways as a basis for a Bikeway Management System!

Documents

Pavement condition survey and assessment - McGill …grimes.mcgill.ca/content/documents/workshop/Lectures/Antonius... · 2 20.06.2013 Pavement condition survey and assessment