The IRCA is responsible for the operation, maintenance, and supervision of all projects and structures under its ownership. The institution provides information on winter services on one hand, and more general service on the other, as well as numerous rules and guidelines on how to best service the road system.
That which falls under the general servicing of a road are all the operations and maintenance work which must be undertaken at least once per year in order to maintain a road as it is, or to elevate them to the level estimated it needs to be at, in accordance with stated goals on traffic flow and general traffic safety.
The head of each area’s service department has oversight on general service, and the chief executive of road service provides a financial plan for the servicing of each area respectively.
Under the umbrella of general services are, on one hand, the maintenance of road markings, and maintenance of the road’s surrounding area on the other.
All main roads and connective roads are divided into service divisions, wherein they are individually prioritised based on their summer day average (SDU), or the amount of cars they each service on average per day, between the months of May and August. They are further separated based on other factors, such as road classification, road type, and proximity to the ring road or other popular tourist destinations.
The frequency of trash pickup and curbside mowing is determined based on a road’s service division. The frequency of quality inspection of general service and quality baselines is also based on these service divisions.
Service division 1 | Roads that connect different sections of the country and/or urban areas and/or industrial areas and/or tourist areas.SDU traffic index exceeding 800 cars per day. |
Service division 2 | Roads that connect different sections of the country and/or urban areas and/or industrial areas and/or tourist areas.SDU traffic index in between 500-800 cars per day. |
Service division 3 | Main and connective roads with an SDU traffic index in between 200-500 cars per day. |
Service division 4 | Other main and connective roads. |
Urban area highways | Highways situated in urban areas. |
Roads signs are e.g. danger warning signs, prohibitory signs, mandatory signs, informative signs, service signs, direction and indication signs, lane markings, overhead bars, bridge markings, signposts, speedometers, lit-up signs and symbols, and any other lighting equipment.
Definition
Classified as the maintaining of road signs are the following actions:
Base guidelines
On roads with annual per-day (ÁDU) traffic >500 cars, the larger variant of road sign should be utilized (90 cm danger warning signs and 80 cm prohibitory signs) whilst the smaller variant of sign is to be used on other roads (70 cm danger warning signs and 60 cm prohibitory signs).
Signs should be legible at a distance of up to 120 m if the speed limit is 60 km/h or above, and legible at a distance of up to 70 m if the speed limit is lower.
Signs are considered slanted if their foundation has tilted up to 5 degrees, or if the signs have rotated up to 15 degrees.
Signs are considered fallen/ruined if they tilt and/or have rotated to a more extreme angle than previously mentioned.
Signs are considered to have limited reflective visibility if they have started to discolour, or if they are dirty.
Description of methods
Renewal of road signs:
Damaged road sign are to be renewed. Where signs are considered ruined or fallen, emergency operations are to be undertaken in every case; furthermore, emergency operations should also be undertaken if a sign can not be fully restored for any possible reason. Signs on roads in unforested areas, where plenty of sand blasting due to wind conditions can occur, will suffer damage at a faster rate, specifically to their reflective visibility, than in other areas.
Signs deemed to have insufficient reflective visibility are to be renewed.
Specifications on reflective signs in division 3 (weak reflection), unit (cd/lx) / m2 accounting for a 0.33° angle of measurement and a 5° angle of incident
Colour:
|
White
|
Yellow
|
Red
|
Green
|
Blue
|
New sign
|
50
|
35
|
10
|
7
|
2
|
Minimum value of older sign
|
35
|
25
|
7
|
5
|
1
|
Specifications on reflective signs in division 4 (strong reflection), unit (cd/lx) / m2 accounting for a 0.33° angle of measurement and 5° angle of incident
Colour:
|
White
|
Yellow
|
Red
|
Green
|
Blue
|
New sign
|
180
|
120
|
25
|
21
|
14
|
Minimum value of older sign
|
126
|
84
|
18
|
15
|
10
|
Repairing traffic signs:
All slanted, turned or fallen signs are to be repaired. Signs indicating direction of traffic flow need to be fixed if one or more have fallen, or are heavily slanted/turned. Foundations in need of repair should be serviced as soon as possible when the ground has defrosted.
Cleaning traffic signs:
Traffic signs are to be cleaned whenever deemed necessary, i.e. when snow obscures the sign, or the sign gets dirty due to nearby road construction/maintenance. Signs should be cleaned as quickly as possible over springtime, and no later than the beginning of May. Signs should be cleaned if their visibility is deemed lower than standards on reflective quality dictate.
The following should be taken into consideration when a decision on sign cleaning is made:
ÁDU | Number of operations/year |
>1500 cars | 5-15 (salt-strewn roadway) |
>1500 cars | 2-5 (sand-strewn roadway) |
<1500 cars | 2 (spring and fall) |
Previous seasonal experience should still serve as a guideline, as the need for traffic sign cleaning can be more pressing on gravel roads, and during the wet season.
Markers are road markers, snow markers, and reflective sides on guard rails.
Definition:
The following is considered maintenance on road markers:
Surface markings, like road signs, fall in accordance with traffic sign law already in place. Signs on road work areas are there included. Surface marking requirements are in place year-round, excepting when a given road is fully covered in snow.
According to chapter 8 of traffic sign regulation and rules on road design, the general rules on surface markings are as follows:
Surface markings should facilitate efficiency and safety on the road through providing information, announcing, directing and guiding individuals when behind the wheel, as well as adding to and strengthening the information provided by road signs. This information is mainly provided visually, but also sonically for certain types of surface markings.
Definition:
The following operations fall under lighting and traffic lights:
Description of methods:
The IRCA owns and operates road lighting, and pays for the cost of energy, maintenance and operations of the light sources per a special contract, excepting decisions to the contrary.
Definition:
The maintenance of all guard rails, except for those present on bridges, and in underground tunnels, falls under the agreed upon service assignment.
Standard:
Guard rails should be in such a condition as to be able to serve their purpose, and travellers should not be put into danger due to their positioning, poor maintenance, or insufficient markings. The height of a guard rail’s upper edge should be 75 cm above the shoulder directly underneath the guard rail. All stones placed at the edge of a road should be at least 10 cm high.
Description of methods:
If a guard rail has been bent more than 30 cm outwards, i.e. due to vehicle collision, it should be repaired. Extra caution must be applied in making sure that the height of the guard rail is as mentioned above. Damaged guard rails, dangerous to the flow of traffic, are to be repaired immediately. Broken or loose foundations should be repaired within a week, and any other damages within a month. If a security fence between roadways is damaged it is to be repaired immediately.
If a road-side stone is broken or otherwise damaged it is to be repaired within a week on roads with an ÁDU of >2000, on roads with an ÁDU of <2000 it should be repaired within a month. The same applies for damages on traffic islands and loaded walls. Soil on traffic islands is to be lowered if it reaches more than 10 cm above a road-side stone.
The raising of road-side stones and traffic islands alongside the raising of a paved road is not financed by the service agents, since such operations are considered a consequence of the paving operation. Damages on stacked rock, walls or bulkheads should be repaired within a month.
Definition:
Falling under the maintenance of livestock grates are the following:
When a grate is beyond repair they must be replaced. The cost for this falls under the maintenance of fences.
Description of methods:
Where necessary, and depending on what region is being serviced, come beginning of May, livestock grates should be cleaned, fences connected to the grate should be mended and reflective markings should be cleaned or replaced.
If a grate’s foundation needs to be repaired this should be done as soon as possible after the soil has defrosted.
Damages to a grate, considered dangerous to travellers, or limit the usability of the grate, are to be repaired immediately Any other damages are to be repaired within three days on roads with an ÁDU of >1000 cars. On other roads these damages should be repaired within a week.
The following operations fall under the management and surveillance of roads:
Description of methods
General surveillance of roads and road infrastructure is carried out in order to survey the conditions of any given road, and to review and maintain everything related to traffic safety. Surveillance trips are undertaken if tips on road or road infrastructure damage is reported. In such cases the nature and scope of the damage is immediately looked into, and if a quick fix is impossible, the damages are properly marked according to protocol.
Aimed-for frequency of surveillance:
Service division
|
Frequency of general surveillance on roads and road infrastructure
|
1
|
Twice weekly
|
2
|
Weekly
|
3
|
Monthly
|
4
|
Twice annually
|
Other roads
|
Annually
|
The surveillance of measuring equipment and other equipment is undertaken in accordance with relevant quality standards.
The surveillance of axle weight and load capacity of roads is carried out during thawing periods, particularly in spring. This surveillance is carried out to determine when/if weight limits and axle weight surveillance need to be imposed. The subsequent advertising of imposed weight limits are a part of the surveillance itself.
Definition:
The following actions concerning small machinery are carried out:
Description of methods:
Machinery equipped with an operating number is not small machinery.
Purchasing should take place through the IRCA’s Operations department, or through a framework deal.
Small machinery should fulfill all rules and regulations.
The following fall under the cleaning and caretaking of a road area:
Description of methods:
Rockfall and land slides onto a roadway which can put traffic flow in danger is to be cleaned as soon as possible (consult frequency chart). If rockfall or land slides can potentially cause greater damage to a road or other infrastructure then minimum actions to mitigate this should be undertaken immediately. Any other cleaning is to be undertaken in co-ordination with other projects in the area, but no later than a month after the incident took place.
Rock nets should be examined and/or mended at least once annually. If rockfall or land slides fill the nets to an extent which limits their usefulness, they should be cleaned and the damaged parts mended as soon as possible.
The removal of trash on roads which fall into service divisions 1-3 should be completed as quickly as possible come spring, with everything to be finished before June. Trash on other roads is to be removed alongside the repair of road markers and traffic signs in the area, or when other work is taking place in the region.
Roadways and their shoulders should be swept come spring if need be, but general operating procedure states that sweeps are not undertaken unless necessary. All intersections should be swept at least once a year, to be completed before the 1st of June each year. The sweeping of intersections should be done in such a way that they are always clean enough to avoid creating danger for travellers.
Wells and drainage needs to be cleaned regularly, with the frequency of cleaning to be determined from prior experience, with special consideration afforded to whether or not the road is sand-strewn in the winter or not.
Underground tunnels and sidewalks are to be swept, and drainage in tunnels is to be cleaned out at least once per spring. Grass-covered traffic islands and other sections of road areas should be mowed as needed over the course of summer.
Resting and picnic areas are to be cleaned regularly, and information boards inspected to make sure they are supplying accurate information, by informing the relevant authority whenever changes are required; furthermore, boards are to be painted and all other equipment is to be clean and in good condition. Trash disposals, wherever they can be found, are to be emptied frequently enough to never be overflowing. In those resting and picnic areas where trash disposals and loose furniture could be damaged they are to be moved for storage and maintenance before October 15th, with plans in place for the equipment to be back at its designated place come the end of May.
The condition and equipment of mountain lodges should be reviewed at least two times a year, once in the fall and once in the winter.
Frequency chart:
Service division | Cleaning of rockfall and landslides with the potential to cause harm | Cleaning and disposal of trash on road area |
1 | Immediately | Twice Annually |
2 | Immediately | Annually |
3 | Within one day | Annually |
4 | Within three days | In accordance with the inspection of road markers, road signs and/or other road work |
Other roads | Within seven days | In accordance with the inspection of road markers, road signs and/or other road work |
The following operations adhere to the maintenance of shoulders, sidewalks, cycling paths and horse trails:
Standards:
If the difference in shoulder height on either side of a road is more than 2 cm on any given road with an ÁDU value of >1000 cars the shoulder should be redone. For roads that experience less traffic, the difference needs to be 3 cm. The re-doing of shoulders consists of grading and reshaping for the correct gradient and height, with the use of extra material if need be.
Description of methods:
Any holes in paved shoulders should be mended within three days on roads with an ÁDU value of >1000 cars. On roads experiencing less traffic the mending should take place within a week.
The cost of shoulder raising with gravel material, undertaken in accordance with the raising of paving, is the responsibility of the same party which paid for the original paving.
The following operations fall under the service assignment:
Description of methods:
Repairs are to be made as soon as conditions allow. If repairs can not be undertaken immediately, or if estimates show that repairs will take a long time, the area is to be designated and marked as a long-term road-work area, with limitations imposed on traffic if determined necessary. If damages can lead to greater damages on roads or road infrastructure, minimum emergency operations are to be undertaken to prevent these damages as soon as possible.
If damages are severe enough to warrant special financing, or if there is doubt surrounding the repair procedure, minimum emergency operations are to be undertaken to guarantee traffic safety, and the place labelled however necessary, before bringing all available information to the regional executive.
Under dehydration fall the following operations:
Standard:
A ditch or channel bottom is to be 0.3 m lower than the lower edge of the road’s foundational layer. If the foundational layer’s thickness is unclear the minimum requirement of 0.5 m comes into effect.
Drainage pipe laying and the sorting of ends is to be in accordance with the work procedure in effect.
Description of methods:
Grass edges, which contain water on and in roads, are to be removed.
Ditches and channels are to be cleaned if their depth has receded to half of their original depth. The minimum depth of channels when operations need to be undertaken are 0.5 – 0.6 m, for dry-ditches it is 1.3 – 1.5 m. Generally, dry-ditches do not need to be cleaned oftener than every 10 – 15 years, but channels should be examined yearly, with subsequent cleaning undertaken if necessary. For roads constructed in accordance with IRCA guidelines, ditches and channels should be renewed in accordance. The construction of new channels or ditches does not fall under the IRCA’s umbrella.
Drainage and drain endings should be checked yearly on roads with an ÁDU value of >1000 cars, and once every two years for other roads. On roads or road sections wherein the drain state is known to be of a level that might facilitate danger, their condition should be examined at least once per year. Drainage needs to be repaired and/or renewed when pipes have come apart, or when sag leads to the formation of standing water within the drain system, preventing it from serving its purpose. The condition of a drain and its intake should be such that no water is in danger of spilling out of the drainage system and onto the road filling.
All trash and other material interfering with the drainage’s water intake and removal is to be removed. Drains are to be cleaned if soil depth reaches a third of the drain’s height.
Special assignments are assignments undertaken in places where conditions necessitate regular, costly service operations, such as: