Multi Criteria Analysis Guideline

Overview

The multi criteria analysis rates each individual point according to a key performance indicator based scheme.

One sheet with a separate set of characteristics servesto rank the overall scenario.

Each indicator can take a value between -2 and +2. 0 is considered a neutral ranking for a characteristic.

The values of all characteristics are summed up and are scaled to a percentage value between 0 and 100.

Eventually, the scores of all sites and the score of the overall scenario are summed up and presented as a value between 0 and 100.

This approach serves to compare different scenarios and scenario versions among each other and to help identifying those characteristics for which insufficient knowledge exists and that need to be further studied.

Characteristics for individual sites

# Criteria Description -2 -1 0 +1 +2
I LAND STATUS
1 Plot availability Is the location currently available or not? In use or occupied with legal constraints In used or occupied without legal constraints Reserved Unused with constraints Unconstrained
2 Clean and clear title How difficult is it to legal obtain the rights or ownership on the plots very difficult difficult neutral easy made available by someone else (e.g. government owned)
3 Plot price What is the expected site cost very expensive expensive normal not expensive cheap or for free
4 Time for acquisition and expected challenges during acquisition What is the expected time or challenge to obtain the rights to use the site for construction and operation very long and very difficult long and difficult long and normal difficulties normal and not difficult short and not difficult
5 Cost of development What is the expected cost of developing the site such that it fits the project's needs very expensive expensive normal not expensive cheap or for free
II CONNECTIVITY
6 Distance from transport, industrial and other relevant infrastructures How far is the site from required relevant infrastructures very far far intermediary distance close just next
7 Distance from populated areas How far is the site from populated areas that are considered to be bothered by the construction and operation just next (< 100 m) close (100-200 m) medium (200-300 m) far (300-400m) remote (> 400 m)
III RAW MATERIALS AND SERVICES
8 Availability of raw materials How is the situation concerning the accessibility of materials (e.g. concrete, steel, cables, cryogens) nearby remote far intermediary close next or nearby
9 Proximity to service providers How is the expected accessibility for site operation services nearby including workforce for operation remote far intermediary close next or nearby
IV PHYSICAL FEATURES
10 Plot size and shape How much space is available and is the site shape beneficial or not for the project unfavourable or too small tight fulfils requirements exactly comfortable more space than needed
11 Topography How beneficial or difficult are the topographic conditions on the surface steep or potentially unstable unfavourable steep slope acceptable slope or not entirely flat almost even and flat flat and even
12 Shaft depth Suitability of the location with respect to the shaft depth including optimised displacement scenarios very deep
(> 300m)
deep
(250 m - 300 m)
acceptable
(170 m - 250 m)
shallow
(100 m - 170 m)
very shallow
(0 m - 100 m)
13 Drainage conditions How difficult/beneficial are the conditions on the site to perform the construction without flooding of the site (e.g. due to water bearing layers underground or rivers) difficult requires development acceptable suitable beneficial for projet (e.g. gravity)
14 Surface ground conditions Surface conditions (e.g. muddy, swelling, unstable, flooding, surface water, archeological remains, also seismic activity/faults) difficult requires development acceptable suitable beneficial for project
15 Water resources What is the level of expected natural water resources for operation (e.g. cooling), such as rivers, lakes, underground reservoirs none/remote low/distant acceptable/intermediary suitable/close beneficial for project/next
16 Accessibility How difficult/easy can the site be accessed for construction purposes (existing road, size (height, width), structure) difficult requires development acceptable suitable beneficial for project
17 Subsurface conditions (physical) How high are the technical risks with respect to subsurface constructions very high risk high risk moderate risk small risk negligible risk
18 Subsurface conditions (regulatory) How high are the constraints with respect to subsurface constructions (e.g. protected drinking water layers) excluded major constraints minor constraints monitoring procedures only no constraints
V INFRASTRUCTURE
19 Accessibility of electrical power How difficult is it to bring the electricity to the site remote and difficult remote and feasible intermediary and feasible near and feasible next or nearby
20 Communication network What is the expected availability of data and voice communication networks remote and difficult remote and feasible intermediary and feasible near and feasible next or nearby
21 Water for industrial use What is the level of connecting to existing industrial water supply (e.g. cooling, fire fighting) such as an existing pumping station or a nearby industrial water network remote and difficult remote and feasible intermediary and feasible near and feasible next or nearby
22 Drinking water What is the level of connecting to existing drinking water supply remote and difficult remote and feasible intermediary and feasible near and feasible next or nearby
23 Sewerage disposal, storm water collection, disposal and treatment points What is the situation concerning water disposal and treatment capabilities off the site remote and difficult remote and feasible intermediary and feasible near and feasible next or nearby
24 Temporary storage and treatment area during construction What is the space situation concerning temporary storage during construction (e.g. for matex) remote and difficult remote and feasible intermediary and feasible near and feasible next or nearby
VI ENVIRONMENTAL AND SOCIAL FACTORS
25 Existing territorial constraints Which constraints have been identified according to the territorial sensibility grid orange with additional constraints orange yellow with caution yellow and no caution green
26 Fauna and flora What is the probability to encounter protected species and interfere with ecological corridors extremely high high medium low negligible
27 Existing construction constraints Which constraints have been identified for the plots that belong to the site (e.g. building a bridge large enough for the river) potential showstopper high constraint common constraints expected no constraints known immediately constructible
28 Adjacent surrounding constraints What is the level of constraints around the site (e.g. views and visibility of site in the landscape) strong constraints moderate constraints no constraints favourable surrounding potential synergies
29 Nuisances What is the level of potential nuisances generated in the location (noise, dust, traffic, pollution…) extremely high high medium low negligible
30 Workforce availability and accessibility How easy/difficult is it to get workers and operators to and from the site (distance, different modalities) remote and difficult remote and feasible intermediary and feasible near and feasible next or nearby
31 Local government commitment Which level of support for construction on the plots can be expected from officials not recommended not supported neutral recommended supported
32 Civil society support How likely will it be to encounter an opposition to construction on the plots potential showstopper opposition neutral welcoming supportive

Characteristics for the overall scenario

# Criteria Description -2 -1 0 +1 +2
I LAYOUT
1 Geometry How much does the geometry differ from the ideal one? Displacement affects physics performance notably Displacement affects physics performance within acceptable range Access shafts displaced without impact on physics performance, but functionality may be reduced (e.g. less redundancy, more difficult integration and installation Minor access shafts displaced without impact on physics performance and functionality As calculated
2 Size How large is the ring? Smaller than 92 km or larger than 100 km 92 to 93 km or 99 to 199 km 93 to 94 km or 98 to 99 km 94 to 95 km or 97 to 98 km 95 to 97 km
3 Transfer lines How difficult are the transfer lines to SPS and LHC? At the technical limit or very long Difficult to build or long As in the CDR baseline (feasible and acceptable) Easy or short but only for one of the machines (SPS, LHC) Easy or short for both machines (SPS, LHC)
II COST
4 How expensive is this scenario expected to be? More than 10% more expensive than the CDR baseline (> 20%) 5% to 10% more expensive than the CDR baseline Comparable to the CDR baseline (less than 5% more or less expensive) 5% to 10% less expensive than the CDR baseline More than 10% less expensive than the CDR baseline
III RISKS
5 Implementation risk How high is the overall implementation risk, e.g. considering geological faults? Very high Higher than the CDR baseline As the CDR baseline lower than the CDR baseline Much lower than the CDR baseline

-- AnneLaureVerdier - 2020-10-20

Edit | Attach | Watch | Print version | History: r3 < r2 < r1 | Backlinks | Raw View | WYSIWYG | More topic actions
Topic revision: r3 - 2021-03-05 - JohannesGutleber
 
    • Cern Search Icon Cern Search
    • TWiki Search Icon TWiki Search
    • Google Search Icon Google Search

    FCC All webs login

This site is powered by the TWiki collaboration platform Powered by PerlCopyright &© 2008-2022 by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
or Ideas, requests, problems regarding TWiki? use Discourse or Send feedback