Method of Measurement for Road Works Series MM 400

Transcription

Method of Measurement for Road Works Series MM 400
Method of Measurement for
Road Works Series MM 400 Road Restraint Systems
(Vehicle and Pedestrian)
CC-RMP-00400
March 2013
CC
Construction &
Commissioning
Standards
TRANSPORT INFRASTRUCTURE IRELAND (TII) PUBLICATIONS
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national road and light rail networks.
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collectively referred to as TII Publications (Technical). This system replaces the NRA Design
Manual for Roads and Bridges (NRA DMRB) and the NRA Manual of Contract Documents for
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Document Attributes
TII Publication Title
TII Publication
Number
Activity
Stream
Document
Number
Method of Measurement for Road Works Series MM 400 - Road
Restraint Systems (Vehicle and Pedestrian)
CC-RMP-00400
Construction &
Commissioning (CC)
Requirements for Measuring
and Pricing (RMP)
00400
Document Set
Publication Date
Historical
Reference
Standards
March 2013
Series MM 400
NRA DMRB and MCDRW References
For all documents that existed within the NRA DMRB or the NRA MCDRW prior to the launch of
TII Publications, the NRA document reference used previously is listed above under ‘historical
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references contained within this document, please refer to the TII Publications website.
Volume 3 - Section 1
Method of Measurement for Road Works
Chapter IV - Series 400
Road Restraint Systems (Vehicle and Pedestrian)
SERIES 400: ROAD RESTRAINT SYSTEMS
(VEHICLE AND PEDESTRIAN)
DEFINITION
1
The term “safety barrier system” shall mean the entire
installation including all posts, supports, foundations, beams,
brackets, terminals, transitions and connections to different
safety barrier systems or structures. It shall also include all
necessary works affected by the installation including surfacing,
amendments to drainage, cables and the like.
2
The term “vehicle parapet system” shall mean entire installation
including all posts, rails, anchorages, supports, foundations,
transitions and connections to structures.
3
The term “standard parapet” shall mean vehicle or pedestrian
parapet which is a product and is compliant with IS EN 1317.
4
The term “bespoke parapet” shall mean a vehicle or pedestrian
parapet which is not a product and thus not compliant with IS
EN 1317, but which has been subject to a detailed design for a
specific situation and set of circumstances.
5
The term “transition” shall mean a system for safely connecting
two road restraint systems of different designs and/or
performance.
6
The term “safety barrier” shall mean that part of the safety
barrier system which forms the Length of Need.
7
The term “Length of Need” shall mean that part of the safety
barrier system which comprises the Approach Length, the
Departure Length and the length of the hazard when measured
along the length of the road.
8
The term “intermediate length” shall mean that part of the safety
barrier system between the terminal and the Length of Need.
Safety Barrier System
Units
9
The units of measurement shall be:
(i)
Measurement
March 2013
10
safety barriers………………..linear metre.
The measurement of safety barrier shall be the developed length
of the Length of Need along the centre line for the containment
performance class between the following points; the end of each
safety barrier and the interface with connections, transitions and
terminals.
1
Volume 3 - Section 1
Method of Measurement for Road Works
Itemisation
11
Chapter IV - Series 400
Road Restraint Systems (Vehicle and Pedestrian)
Separate items shall be provided for safety barriers in
accordance with Chapter II paragraphs 3 and 4 and the
following:
Group
Feature
I
1
Safety barrier
II
1
Each containment and impact severity
performance class
III
1
Each working width class
IV
1
Designed to be impacted on one side only
2
Designed to be impacted on both sides
1
Straight or curved exceeding 120 metres radius
2
Curved exceeding 50 metres radius but not
exceeding 120 metres radius
V
3
Curved not exceeding 50 metres radius
Safety Barriers
12
Item Coverage
The items for safety barriers, shall in accordance with the
Preambles to Bill of Quantities General Direction include for:
(a)
design;
(b)
provision of design documentation;
(c)
reports and certificates;
(d)
provision of data and drawings;
(e)
submissions to the Employer’s Representative, including
re-submissions and modifications;
(f)
amendments to the Works;
(g)
certification by an independent Chartered Engineer;
(h)
everything necessary for the design, fabrication,
installation and testing of the safety barrier system;
Transitions
Units
13
The units of measurement shall be:
(i)
Measurement
March 2013
14
transitions…………………number.
The measurement of transitions shall be the complete
installation.
2
Volume 3 - Section 1
Method of Measurement for Road Works
Itemisation
15
Chapter IV - Series 400
Road Restraint Systems (Vehicle and Pedestrian)
Separate items shall be provided for safety barriers and
transitions in accordance with Chapter II paragraphs 3 and 4 and
the following:
Group
Feature
I
1
2
Transitions – Between safety barriers of different
characteristics
Transitions between safety barriers and parapets
II
1
Each containment and impact severity
performance class
III
1
Each working width class
IV
1
Designed to be impacted on one side only
2
Designed to be impacted on both sides
1
Straight or curved exceeding 120 metres radius
2
Curved exceeding 50 metres radius but not
exceeding 120 metres radius
V
3
Curved not exceeding 50 metres radius
Transitions
16
Item Coverage
The items for transitions shall in accordance with the Preambles
to Bill of Quantities General Direction include for:
(a)
design;
(b)
provision of design documentation;
(c)
reports and certificates;
(d)
provision of data and drawings;
(e)
submissions to the Employer’s Representative, including
re-submissions and modifications;
(f)
amendments to the Works;
(g)
certification by an independent Chartered Engineer;
(h)
everything necessary for the design, fabrication,
installation and testing of the transition ;
Terminals
Units
17
The units of measurement shall be:
(i)
Measurement
March 2013
18
Terminal………………..number.
The measurement of terminals shall be the complete installation,
including any intermediate length of safety barrier.
3
Volume 3 - Section 1
Method of Measurement for Road Works
Itemisation
Terminals
19
20
Item Coverage
Chapter IV - Series 400
Road Restraint Systems (Vehicle and Pedestrian)
Separate items shall be provided for safety barriers and
transitions in accordance with Chapter II paragraphs 3 and 4 and
the following:
Group
Feature
I
1
Terminal
II
1
Each lateral displacement zone class
III
1
Each performance and impact severity class
IV
1
Each Exit Box Class
V
1
Designed to impact on one side only
2
Designed to be impacted on both sides
The items for terminals shall in accordance with the Preambles
to Bill of Quantities General Directions include for:
(a)
safety barriers and transitions (as this Series paragraph);
Delivery of Materials and Equipment for Maintenance Purposes
Units
Measurement
March 2013
21
The units of measurement shall be:
(i)
delivery of safety barrier for maintenance
purposes……..linear metre.
(ii)
delivery of terminals and transitions for maintenance
purposes………number.
(iii)
delivery of specialised installation, maintenance and
demolition equipment for maintenance
purposes………………….item
(iv)
training for maintenance purposes………………….item
22
The measurement of delivery of safety barrier for maintenance
purposes shall be all the components which are required to form
the developed length along the centre line of the beams or in the
case of double sided safety barriers measured once only along
the centre line of the safety barrier system.
23
The measurement of delivery of terminals, transitions,
connections to bridge parapets, connections to structures for
maintenance purposes shall be all the components which are
required to form the numbers stated in the Contract.
4
Volume 3 - Section 1
Method of Measurement for Road Works
Itemisation
24
Chapter IV - Series 400
Road Restraint Systems (Vehicle and Pedestrian)
Separate items shall be provided for delivery of materials and
equipment for maintenance purposes in accordance with
Chapter II paragraphs 3 and 4 and the following:
Group Feature
I
II
1
Each type of safety barrier
2
Each type of terminal
3
Each type of transition
4
Each type of equipment
5
Each type of training
1
Designed to impact on one side only
2
Designed to be impacted on both sides
Note 1: Group II Features shall be applied only to Group I
Features 1, 2 and 3.
Delivery of Materials and
25
Equipment for Maintenance
Purposes
The items for delivery of materials and equipment for
maintenance purposes shall in accordance with the Preambles to
Bill of Quantities
General Direction include for:
Item Coverage
(a)
loading, transporting from supplier, unloading and
positioning at store;
(b)
replacing items damaged during the foregoing operations;
(c)
making good to protective systems.
Temporary Safety Barriers
Units
Measurement
March 2013
26
27
The units of measurement shall be:
(i)
temporary safety barriers……linear metre.
(ii)
temporary safety barrier transitions, temporary safety
barrier terminations……..number
The measurement of temporary safety barriers shall be the
developed length along the centre line of the barriers between
terminations.
5
Volume 3 - Section 1
Method of Measurement for Road Works
Itemisation
28
Chapter IV - Series 400
Road Restraint Systems (Vehicle and Pedestrian)
Separate items shall be provided for temporary safety barriers in
accordance with Chapter II paragraphs 3 and 4 and the
following:
Group Feature
I
II
III
IV
Temporary Safety Barriers
29
Itemisation
Temporary Safety Barrier
Terminations and
Transitions
30
Item Coverage
1
Each type of temporary safety barrier
2
Each type of transition
3
Each type of termination
1
Straight or curved exceeding 120 metres radius
2
Curved exceeding 50 metres radius but not
exceeding 120 metres radius
3
Curved not exceeding 50 metres radius
1
Units supplied by Road Authority
2
Units supplied by Contractor
1
Units to be handed over to Road Authority on
completion
2
Ownership of units to be retained by Contractor
on completion
The items for temporary safety barriers shall in accordance with
the Preambles to Bill of Quantities General Direction include
for:
(a)
loading, transporting from store, unloading and erecting;
(b)
replacing items damaged during the foregoing operations;
(c)
safety barriers (as this Series paragraph 9);
(d)
On completion, dismantling, loading, transportation from
site, unloading.
The items for temporary safety barrier terminations and transitions
shall in accordance with the Preambles to Bill of Quantities General
Direction include for:
(a)
temporary safety barriers (as this Series paragraph 24);
(b)
fixing to or setting in concrete;
(c)
fixing to temporary safety barriers including attachment
systems and connectors.
Vehicle Parapet Systems
Units
31
The unit of measurement shall be:
(i)
Measurement
March 2013
32
Standard parapets , bespoke parapets ............. linear metre.
The measurement of parapets shall be the developed length
along the parapet centre line.
6
Volume 3 - Section 1
Method of Measurement for Road Works
Chapter IV - Series 400
Road Restraint Systems (Vehicle and Pedestrian)
The height of standard parapets shall be the height between the
top of the top rail and the finished level of the surface directly
beneath the parapet.
The height of bespoke parapets shall be the height shown on the
Drawings.
Itemisation
Standard Parapets
Item Coverage
March 2013
33
The measurement of concrete parapets shall be in accordance
with Series 1700: Structural Concrete.
34
Separate items shall be provided for parapets in accordance with
Chapter II paragraphs 3 and 4 and the following:
35
Group
Feature
I
1
Standard parapets
2
Bespoke parapets designed by the Contractor
3
Bespoke parapets designed by the Employer
II
1
Each containment level impact severity class
III
1
Each working width class
IV
1
Different locations
V
1
Straight or curved exceeding 50 metres radius
2
Curved not exceeding 50 metres radius
The items for standard parapets shall be in accordance with the
Preambles to Bill of Quantities General Directions include for:
(a)
safety barriers (as this Series paragraph 12);
(b)
obtaining aesthetic approval;
(c)
fabrication (as Series 1800 paragraph 6);
(d)
protective system (as Series 1900 paragraph 4);
(e)
connection pieces for attachment of safety fences;
(f)
drilling or forming holes and pockets and casting in bolts,
sockets, base plates and anchorage assemblies;
(g)
adhesives and epoxy or polyester mortar, bedding mortar
or
grout;
(h)
making good protective system;
(i)
infilling;
(j)
adjustment to flowing alignment;
(k)
fixing to structures and foundations including attachment
systems;
(l)
expansion joints;
(m)
sealing of voids.
7
Volume 3 - Section 1
Method of Measurement for Road Works
Bespoke Parapets
36
Item Coverage
Chapter IV - Series 400
Road Restraint Systems (Vehicle and Pedestrian)
The items for bespoke parapets shall in accordance with the
Preambles to Bill of Quantities General Directions include for:
(a)
standard parapets (as this Series paragraph 27);
(b)
concrete (as Series 1700 paragraphs 4 and 9);
(c)
formwork (as Series 1700 paragraph 14);
(d)
reinforcement (as Series 1700 paragraph 25).
Pedestrian Parapets, Pedestrian Guardrails and Handrails
Definition
37
Units
38
Any reference to “pedestrian” shall be deemed to include
equestrian and cyclist.
The unit of measurement shall be:
(i)
pedestrian parapets, pedestrian guardrails,
handrails…….linear metre.
Measurement
39
The measurement of pedestrian parapets, pedestrian guardrails
and
handrails shall be the developed length along the parapet,
guardrail or handrail centre line. The height of pedestrian
parapets and guardrails shall be the height between the top of the
top rail and the finished level of the surface directly beneath the
guardrail.
Itemisation
40
Separate items shall be provided for pedestrian guardrails and
handrails in accordance with Chapter II paragraphs 3 and 4 and
the following:
Group Feature
I
Pedestrian Guardrails
and Handrails
41
Item Coverage
1
Each type of pedestrian parapet
2
Each type of pedestrian guardrail
3
Each type of handrail
II
1
Different heights
III
1
Different locations
IV
1
Curved in plan to different radii.
The items for pedestrian parapets, pedestrian guardrails
and handrails shall in accordance with the Preambles to Bill of
Quantities General Direction include for:
(a)
safety barriers and transitions (as this Series paragraph 9);
Anti-Glare Screens
Units
42
The unit of measurement shall be:
(i)
Measurement
March 2013
43
anti-glare screens…….linear metre.
The measurement of anti-glare screens shall be the developed
length along the centre line.
8
Volume 3 - Section 1
Method of Measurement for Road Works
Itemisation
44
Chapter IV - Series 400
Road Restraint Systems (Vehicle and Pedestrian)
Separate items shall be provided for anti-glare screens in
accordance with Chapter II paragraphs 3 and 4 and the
following:
Group Feature
I
1
Anti-glare screen
II
1
Each type of anti-glare screen
III
1
Straight or curved exceeding 120 metres
radius
2
Curved exceeding 50 metres radius but not
exceeding 120 metres radius
3
Curved not exceeding 50 metres radius
Anti-Glare Screens
45
The items for anti-glare screens shall in accordance with the
Preambles to Bill of Quantities General Direction include for:
Item Coverage
(a)
safety barriers and transitions (as this Series paragraph 9)
March 2013
9
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Páirce,
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+353 (01) 646 3600
[email protected]
+353 (01) 646 3601
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