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Road Maintenance in Estonia. Reorganization of Road Operations Management in Estonia. Rain Hallimäe, Jüri Valtna Estonian National Road Administration Raod M anagement Department. Rain Hallimäe, Jüri Valtna Estonian Road Administration Road Maintenance Division.
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Road Maintenance in Estonia Reorganization of Road Operations Management in Estonia Rain Hallimäe, Jüri Valtna Estonian National Road Administration Raod Management Department Rain Hallimäe, Jüri Valtna Estonian Road Administration Road Maintenance Division
Estonian road network in 2007 Total 57 565 km National roads 16 465 km Main roads 1 601 km Basic roads 2 391 km Secondary roads 12 425 km Ramps and collecting roads 48 km Density of national roads 379 km per 1 000 km2 Local and private roads 38 078 km Urban roads and streets 3 022 km
Principles of road maintenance (1) Basic approach Routine service Retain repairs Periodic service good required level bad
Principles of road maintenance (2a)Types of operations Routine service: The aim of routine service is to ensure the required service level of roads. The works include: patching, crack sealing, strip and spot surface dressing, shoulders ordering, grass mowing, gravel road planning, brushwood cutting, cleaning of ditches, maintenance of culverts, marking of roads, maintenance of traffic signs and marker posts, winter service works.
Principles of road maintenance (2b)Types of operations Periodic service: The aim of periodic service is to rehabilitate the worn-out parts of the road. The works include: repair of the embankment, dust binding, digging of new ditches, construction of culverts, installing of new traffic signs and boards and safety barriers, repairs of gravel roads in small extent; surface dressing of paved roads. The works are done by the yearly Bill of Quantities fixed before May, 01. Retain repairs: The aim of retain repairs is to keep gravel roads in good condition until the renewal. The works are done by the yearly Bill of Quantities fixed before April, 01.
Requirements for the state of roads (1) • Both in summer and winter the requirements for the state of roads depend on the importance of the road and traffic flow; • There are 4 service levels; The requirements for the 4th level are most strict and for the 1st level the modest.
Requirements for the state of roads (2) Summer service levels paved roads gravel roads Winter service levels unified for paved and gravel roads
Requirements for the state of roads (3) Summer service Paved roads: • condition of pavement (evenness [IRI], cracks, pot holes, ruts); • road security (road markings, sign posts); • range of side visibility; • performance of summer service works (mowing). Gravel roads: • condition of surface (cross-fall, evenness, ruts); • range of side visibility; • performance of summer service works (mowing).
Requirements for the state of roads (4) Winter service • general state of road surface (snow-clearing, anti-skid treatment); • assurance of required friction coefficient; • maximum permitted thickness of snow layer (dry snow, wet snow, sleet, salt-snow mix) on the road; • unevenness of road surface caused by snow or ice (ruts, traffic-thickened snow).
Information on road and weather conditions ROAD INFORMATION CENTER
General principles of maintenance contract (1) • summer and winter service enclosed into the same contract; • duration of the contract 4-5 years 8-9 years; • integral parts of contract: routine and periodic service; + retain repairs (since 2007); • routine service –amount of work given must ensure the required condition of the road (service level). Paid performance-based; • periodic service, retain repairs – prescribed amount of works must be carried out. Paid by unit prices;
General principles of maintenance contract (2) • payment for maintenance works is accomplished in monthly basis in accordance with the “Financing Schedule” (annex to the contract); • deductions from payable sums are made due to low quality of performance, discovered during supervision; • customer has right to collect penal fine if the maintenance documentation is not submitted in due time (detailed in contract); • The prices of operations and works change every year in accordance with the Road Operation Price Index (in former contracts Construction Price Index) published by the Statistics Estonia;
Supervision of road operations (1) • Road Operations Supervision Guide (approved by the Directive of Director General of ERA); • Contractors are obliged to devise and implement the internal plan for quality assurance of maintenance works Supervision of road operations Contractor’s supervision Customer’s supervision
Supervision of road operations (2) • Two categories of supervision : • daily supervision: selective checkingwhetherthe service level is obtained; • monthly supervision: checking if the road conditions fulfil the requirements to the specified service level and maintenance contracts in the whole area
Flexibility by making a new contract Enlistment of shortcomings, drawbacks, imperfections discovered during supervision Analysis of these demerits: who’s to blame? – contractor or customer? Working out measures in order to make contractors’ work more efficient and economically optimal Implementing these measures Enlistment of new shortcomings, drawbacks, imperfections discovered during supervision etc. Further activities
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