Constant innovations in technology has greatly improved accessibility and our quality of life everywhere. This improved quality and ease of access also apply to traveling. Each year, we witness an exponential growth in the volume of travelers. Our public transportation infrastructure, such as airports, metro stations, railway stations, hotels, and shopping centers, also need to evolve to accommodate this growth.
Airports are some of the busiest public transit hotspots. They support the comings and goings of thousands of passengers every day. Schindler collaborates with leading airports around the world to help them seamlessly accommodate this constant flow of foot traffic. Schindler’s complete range of solutions for airports include passenger and service elevators, escalators, and auto walks.
Schindler also has a comprehensive solution for airports to manage the flow of people through their premises. The Traffic Management TM solution from Schindler is designed to address the needs of a modern airport and is equipped to scale with technology. It ensures smooth and efficient movement of people and goods regardless of the volume of traffic or the complexity of their movements.
Railway and metro stations must also be seen as integrated units. Schindler is the world leader when it comes to supplying solutions for multi functional centers where public transport meet commercial and retail spaces. Besides considering the movement and flow of people within a railway, underground or bus station, we also take into account commercial spaces such as restaurants, shopping malls, and office buildings that are closely connected to these transit centers, and the common flow of people between the railway or metro stations and these areas.
Our equipment and facilities are thus able to offer efficient, safe and easy transportation to millions on a daily basis. The equipment is built to last—it needs to function optimally even under severe strain, day in and day out, 24 hours a day, 365 days a year, and often in varying weather conditions like increased humidity, snow, or rain.
It is important to begin planning of Traffic Management early to ensure optimal traffic within and through railway and metro stations. Valuable guidance and information on such planning can be found in our Traffic Management planning guide please contact our specialized team for dedicated support.
It is important to consider the special requirements of the public transportation segment, such as elevators with special characteristics, early on in the planning phase.
Early clarification of the design details during the tendering or budgeting phase will lead to a more cost and time efficient design, engineering, manufacturing and delivery process.
Public transportation elevators undergo the heaviest usage. Because of this, they need to be monitored and maintained more frequently than elevators in lower footfall locations, such as residences. However, individual public transportation elevators will have its own maintenance and monitoring schedules depending on its usage rate. If an elevator is being used round-the-clock every day, it will require more maintenance and upkeep than an elevator which is used for limited periods every day.
Before entering the Life Time definition, the basic parameters influencing the value must be full understood. Number of start per hours will influence duty cycles and therefore the system’s life time.
Starts per year are the number of drive activations due to an effective elevator trip. Schindler systems are qualified based on number of trips.
Duty is normally clustered in low, mid high and very high segments and linked to the number of trips per year. For example, 300 000 starts a year fall into the high duty cluster and will require system withstanding the need.
Time Life time is linked to the above-mentioned criteria and can be described as the period over which the elevator can be maintained, in accordance with Schindler maintenance procedures, before continued use may become prohibitively expensive or risky if no major structural repair, replacement or system modifications have been completed.
Precondition to ensure useful Life Time of the elevator systems are summarized in five main pillars:
The elevator is used solely for the purposes for which it was designed (application scope).
The environment (temperature, humidity, dust) where the elevator is used does not fall outside design parameters.
Defined components are replaced according to the manufacturer recommendations or stipulations.
Correct maintenance is applied according to the manufacturer recommendations.
All work is carried out by competent individuals (as defined in EN81: Designated person, suitably trained, certified, and provided with the necessary instructions.).
The reliability growth process (RGP) defines the methodology and processes used to achieve the targeted reliability,availability and maintainability (RAM) in elevator development programs.
The RGP and its related activities/tasks are fully embedded in the Product Cycle Process.
The Reliability growth is the result of an iterative, closed loop improvement process. There are three essential elements involved in achieving reliability growth:
Identification of failures, failure sources and failure mechanisms through analysis and prototype/pre-series testing on simulated and real operating scenarios.
Identification of the root cause(s) of failures and failure mechanisms through testing on simulated and real operating scenarios.
Effective closed loop process to eliminate the residual root cause(s) of failures and validation of the effectiveness of the solutions implemented.
Demonstration of the achievement of reliability targets by monitoring the performance of installed units.
All key phases within the Schindler’s RGP are represented in the figure below:
Critical Item List
Systematic identification of criticalities due to expected changes in different domains (operation, maintenance, installation, design, transportation etc. The Critical Item List is performed through a Schindler’s tool.
Reliability, Availability & Maintainability (RAM)
The RAM prediction is a quantitative verification of the achievement of the Mean Time Between Callbacks (MTBC), Mean Time To Restore/Repair and Availability. RAM prediction is performed through a Schindler’s tool.
Failure Modes and Effects Analysis (FMEA)
The FMEA is a systematic, rigorous and team-based identification of failure modes their effects and root causes in order to identify mitigation action and to reduce all potential risk to an acceptable level.
The aim of reliability testing is to demonstrate the achievement of reliability targets through appropriate testing of components and systems. The major types of reliability tests are endurance test, reliability demonstration test (RDT) and accelerated life test (ALT/HALT).
The Reliability Assessment (RA) confirms elimination of design weaknesses and that the design can achieve the reliability targets as defined in the system design specification. Actions are given to the corresponding action owner in case of unacceptable deviations.
The test, analyze and fix process is an iterative, closed-loop reliability growth methodology. The process includes: observing a portfolio of units running for a given period, analyzing failures to determine cause of failures, re-designing to remove the cause, implementing the new design, and re-testing to verify that the failure cause has been removed. The resolution of all identified issues is driven by a Reliability Review Board which ensures the implementation of a full closed loop process. The monitoring campaign ends if and only if all conditions specified in the process have been fulfilled.
The objective of the Reliability Demonstration is to confirm that the delivered program fulfills all reliability requirements as defined in the system design specification. The RD gives a forecast of the MTBC of the whole future portfolio based on the observation of a representative number of installations together with the application of reliability engineering modelling techniques. The RD also identifies design and process weaknesses of the program which may still exist.
The resolution of all identified issues is driven by a Reliability Review Board which ensures the implementation of a full closed loop process. The RD ends if and only if the MTBC of the program has been achieved and all condition specified in the RD process have been fulfilled.
Architects, planners, specifiers and project managers can download their specific escalator or elevator planning data in the form of CAD drawings (dwg, dxf), BIM models (ifc) or written specifications (docx).
In just a few clicks, we are able to provide you with, not just recommendations, but also a comprehensive product specification and a detailed layout drawing.
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