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

I	LAND STATUS
#	Criteria	Description	-2	-1	0	+1	+2
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

I	LAYOUT
#	Criteria	Description	-2	-1	0	+1	+2
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

Topic revision: r3 - 2021-03-05 - JohannesGutleber

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