Training on Falling Weight Deflectometer (FWD)

Dynatest gave introduction of FWD and training for the future FWD operators in the RAMS unit. FWD will be used on all the paved ABC roads and selected D-roads. In should be noted, that FWD is not able to be used on roads having steep geometry. On the other hand, hot temperature is not limiting the surveys, since results can be corrected with BellĀ“s curve. Busy highways will be measured on low traffic hours, due to safety reasons. [Read More]

Road inventory training

The roads belonging to roadclasses A, B and C have been surveyed using a 360-degree camera and a lidar. Orthophotos have been prepared on the road surface and immediate surroundings. Two specialised software have been installed on the Ministry’s server: one can be used to have a 360-degree streetview on the roads and the other one can be used to visualise the pavement. The idea is to collect necessary inventory and condition items from the photographs. [Read More]

Bridge inspections on the way

Bridges are being inspected

The first 12 bridges have been inspected. It is not yet known how many bridges there are in total, but the current estimate is 180. The bridge inspection was slow in the beginning as the future inspectors were trained at the same time. During the first week of inspections the inspection time was reduced from three hours to half an hour.

Traffic counters installed

Installation of portable traffic counters

Ten portable traffic counters have now been installed on the traffic counting locations. The counters will remain for a week on the spot and then they are moved to new locations. Later, the portable counters are complemented with permanent counters and manual traffic counting.

Traffic counter training

Installation of portable traffic counter

Training was given by Metrocount on installation and operation of portable traffic counters. The Ministry has 12 units that will be used for one-week counts on approximately 200 locations. Weekly traffic count data is complemented with manual counts as well as permanent counting in two locations.

Drone for inspections

A drone was procured to assist in bridge inspections. It is possible to fly under the bridge and take high quality video. It needs to be remembered that the GPS signal is lost under the bridge and the drone can behave in an unexpected way. There is a manual mode for full manual control in such situations. The photos taken with the drone camera can be used to create a visual 3D model of the bridge. [Read More]

Mobile phone -based survey

Mobile phone survey

Mainly D and E class roads are also surveyed by a mobile phone with Roadroid application. The phone is mounted on the windshield and set to take a photo every 3 seconds. The phone will also collect GPS coordinates as well as International Roughness Index. The photos will be used to assess the road condition in each location for potholes, cracking and edge break.

Traffic counters

Movable traffic counters Permanent traffic counters

Traffic counters have arrived. Twelve movable counters from Metrocount and two permanent counters from Sensebit were delivered. The location for permanent traffic counters will be deciced soon and they will be installed under the pavement. Movable counters will be placed for a week on one location and they will circulate through all the zones in road classes A, B and C.

IRIMETER survey

International Roughness Index (IRI) is collected with IRIMETER 2 -device. The sensors are installed in two vehicles. One will cover A-, B- and C- roads that were surveyed by Reach-U. Another device and car will cover currently unclassified as well as D- and E- roads. Who can guess the average IRI of the country for each road class? The attached picture shows roughness for the road A11 (old numbering system). The winner gets a ride in a survey vehicle. [Read More]