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General information
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General criteria
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Status of development: in use |
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Time horizon for broad application: now |
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Expected technological development: dynamic |
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Benefits (other than environmental): medium |
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Barriers: medium |
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Applicability for railway segments: high |
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Type of traction: electric - DC, electric - AC, diesel
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Type of transportation: passenger - main lines, passenger - high speed, passenger - regional lines, passenger - suburban lines, freight
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Grade of diffusion into railway markets:
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Diffusion into relevant segment of fleet: not applicable |
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Share of newly purchased stock: not applicable |
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Market potential (railways): high |
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Environmental criteria
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Impacts on energy efficiency:
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Energy efficiency potential for single vehicle: > 10% |
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Energy efficiency potential throughout fleet: 2 - 5% |
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Other environmental impacts: positive |
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Economic criteria
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Vehicle - fix costs: medium |
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Vehicle - running costs: significant reduction |
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Infrastructure - fix costs: none |
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Infrastructure - running costs: increased |
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Scale effects: low |
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Amortisation: strongly dependent on specific application |
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Application outside railway sector (this technology is railway specific)
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Overall rating
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Overall potential: promising |
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Time horizon: short-term |
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Short train-sets are an effective means to achieve a better occupancy in situations with strong variation of temporal or spatial demand. This reduces costs and improves energy efficiency (per passenger-km) considerably. Higher seat-specific investment is compensated by reduced seating capacity to be supplied. In local and regional service the use of short MUs to adapt train length to demand is already wide-spread. However, some operators fear higher complexity of train formation processes and additional planning efforts to ensure vehicle availability. In main line service, a major barrier lies in the reduced mobility of passengers along the train. A joint effort between railways and manufacturers could generate satisfying solutions for this problem. |