PCP
Capacity belongs to a chain
A railway improvement is judged by the journey it enables. An additional train is useful when it reaches a connection; it loses part of its value when it creates a long wait. Train numbers, maximum speed and kilometres of track therefore cannot describe the service independently.
Rail policy connects operations, access and preservation. The balance is political. A faster corridor may attract resources while a station entrance, a regional connection or an ageing installation remains a daily constraint. The PCP puts the complete journey at the centre of the programme.
Renens: improving a junction
SBB’s documentation for the western end of Renens describes new track connections intended to separate movements more effectively. Expected benefits include improved interchange. Approval and construction remain distinct stages: those benefits are project objectives, not results represented here as already achieved.
At a junction, two trains may simultaneously need incompatible routes. A track connection can remove that conflict without resolving every other constraint: platform occupation, dwell time, signalling and approach lines still matter. One installation therefore does not have an identical effect throughout the day.
Public appraisal should distinguish movements facilitated from remaining constraints, and benefits for interchange passengers, regional services and freight. Every use need not gain equally from an asset. That comparison is more useful than an abstract argument for more or less infrastructure.
The timetable exposes the value
Service plans and equipment must correspond. A regular connection requires a suitable interchange time. Greater frequency requires examination of headways, crossing movements and turnround margins. Journey speed comes from the whole route, not its fastest point.
Margins are not necessarily wasted time. They can prevent a small delay from spreading across several lines. Excessive margins can also lengthen journeys unnecessarily. Conflicting movements, observed regularity and the intended service determine the balance. The PCP supports sufficiently concrete service assumptions for public debate.
Demand also needs to be examined by time and route. Daily averages hide a crowded train at shift change or a weak evening service. Occasional travel and people without a car also belong in the public-service requirement.
Maintenance is not a smaller construction project
Operation makes assets function; maintenance preserves their use; renewal replaces components reaching the relevant stage; expansion changes capacity or service. They may meet on one worksite without serving the same purpose. Combining them indiscriminately obscures why spending changes and which problem it addresses.
The Federal Office of Transport’s 2025–2028 performance agreements concern operation and asset preservation. They illustrate continuity over several years, distinct from financing an extension alone. Giving preservation priority protects existing investment and the service depending on it.
Postponement costs more than the deferred work. It may waste an already planned closure and require another later. Conversely, premature replacement can absorb funds needed for a more urgent problem. Technical condition, remaining life and opportunities for coordination must inform sequencing.
A worksite is already a service issue
A long closure can allow faster work than many short interventions. It can also transfer substantial difficulties to passengers, businesses and staff. Both effects belong in the comparison, not only immediate construction costs.
The existence of a replacement vehicle does not establish equivalence. Stop access, capacity, first and last departures, connections and reduced mobility all matter. A daytime service does not solve the problem of a worker starting before its first departure.
Information has its own timetable too. Late announcements leave employers, schools and households unable to adapt. For the PCP, alternative travel arrangements form part of the project and require funding and examination before disruption begins.
Accessibility fails at the weakest link
An adapted platform is not enough. Station approaches, working lifts, boarding, signs and connections combine to make a journey. A failed lift can cancel the value of other improvements for some users.
Appraisal should therefore examine usable journeys rather than count installations. Audible and visual information, orientation during works and available assistance belong in the chain. A solution must work at the time of travel. Help subject to impractical conditions does not provide the same independence.
Skills retain control of the network
Diagnosis, signalling, possession planning and safety interventions depend on skilled occupations. Buying equipment does not replace training for its maintenance. Total dependence on a supplier to understand a fault can cost time, autonomy and the ability to compare options.
The PCP supports retaining technical knowledge, documentation and capabilities to develop the network. Contractors should complement that competence. Work programmes must also match available specialists: multiplying simultaneous sites does not automatically multiply the people able to deliver them.
Judgement after opening
Appraisal must return to the original objective. A promised connection should be assessed as a connection; renewal through asset condition and availability. Delays may have several causes, and an isolated incident does not establish a programme’s failure.
Recurring problems and deviations need explanation, with lessons retained for the next project. Which interventions improved service, which merely displaced constraints, and which maintenance capabilities remain missing? For the PCP, public value lies in continuity between the decision, the journey actually offered and the capacity to preserve the network.
Freight needs a usable route from end to end
Spare capacity on one section does not create a freight service. A train must enter the network, pass junctions, reach a terminal and fit a delivery chain. An isolated available path does not establish whether a business can actually use rail.
Freight and passenger services differ in speed, train length, stops and regularity of demand. Coexistence requires timetable work and sometimes facilities for overtaking or separating movements. Describing them as always compatible or necessarily opposed obscures the actual choices.
The PCP supports public planning capacity linking terminals, local connections and the main network. Modal shift cannot be demanded while essential local access disappears. Commercial conditions and reliability on the final section matter as much as physical passage along a major corridor.
The last mile also determines usefulness
A railway journey does not always begin at the main station. A missed bus connection, a walking route closed during construction or unusable cycle parking can diminish a technically successful track investment. These interfaces require coordination with municipalities and other operators; the rail infrastructure manager cannot settle them alone.
Planning can test explicitly selected typical journeys: an early commute, a late return, a wheelchair journey or access to a freight terminal. These are appraisal scenarios, not a claimed passenger survey. They expose where saved time is lost and who can act. The PCP supports this concrete test of public value: additional infrastructure should improve a complete journey, with resources for its interfaces.