News Article | May 24, 2017
Learning lessons from the much-delayed, 23-kilometer first phase of a Tel Aviv regional light-rail system, Israeli transportation officials have issued new engineering and project management tenders for the next two lines, with construction investment estimated at $8 million. Israeli companies will manage the project, with foreign firms playing a major role as consultants. Government award in 2006 of the estimated $2-billion first line to a consortium of Israeli and foreign firms, led by Africa Israel Investments, was then revoked after financing could not be obtained. The state-owned NTA Metropolitan Mass Transit Systems Ltd. took over, but construction, which included significant tunneling, began only in August 2015; work is set to finish in 2021. “Lessons from the past experience will enable the next two lines to be built more efficiently and without delays,” a Transport Ministry source said. Transport Minister Yisrael Katz said work on the next two segments—a 39-km north-south line with 61 stations and an 18-km east-west line with 44 stations—would start in 2018. NTA estimates 600,000 passengers will ride the three lines daily. Meanwhile, officials said France-based consulting firm Systra has won a tender to plan three additional light-rail lines in heavy-demand areas in the Tel Aviv metro area.
Cheetham M.,SNCF Reseau |
Tourment R.,IRSTEA |
E3S Web of Conferences | Year: 2016
The coordination of flood management practices and the reduction of flood risk as proposed under the Plan Rhône project has led to a vast program of flood defence modernization and construction in the lower Rhône valley. One key element of the project involves the construction of a new 9km levee structure parallel to an existing railway line between the towns of Tarascon and Arles (Bouches-du-Rhône, France) on the left bank of the Rhône, which has historically been an obstacle to the propagation of flood flows. The new levee is designed to protect the towns of Arles and Tarascon up to the 10-2 annual probability flood event, after which floodwater will flow over a 5km spillway which will be integrated into the structure. In case of overtopping of the spillway via a spillway structure, floodwater is collected in the space between the two embankments and will subsequently flow towards one of ten newly constructed flood discharge structures, spaced at regular intervals in the railway embankment. The levee will form part of a global system of defence which is designed against flooding on the Rhône with an annual probability of occurrence of 10-3. In the event of overtopping of the levee, the railway embankment will be subjected to hydraulic loading and is at risk of damage from flood flows. During the detailed design phase of the project, options were explored for optimizing the permanent protection for the railway embankment. Using results from 2D and 3D hydraulic numerical modelling, a detailed risk assessment of the railway embankment was undertaken to evaluate its vulnerability under different hydraulic loading conditions and for different failure mechanisms using various parameters including water depth, hydraulic load, the duration of flood exposure and flow velocity. A comprehensive understanding of the main mechanisms of embankment damage under hydraulic loading (internal/external erosion, overtopping, rotational failure etc.), existing geotechnical conditions and the railway embankment structure were required to undertake the risk assessment. For each hydraulic loading scenario, a detailed economic appraisal was undertaken for each method of protection involving the evaluation of damages associated with disruption to train services and the associated costs to repair the structure. The final stage of the project involved integrating the economic assessment into a wider reaching multi-criteria analysis including indicators for train security, maintainability and environmental impact aspects. The multi-criteria approach was tested under two management strategies to evaluate the effectiveness of each embankment protection system. This paper outlines how the risk assessment, economic appraisal and management-strategy based multi-criteria approach resulted in a highly optimized system of embankment protection with significant gains in terms of both reduced cost of implementation and environmental enhancement whilst maintaining the high levels of railway security required by SNCF-RESEAU. © 2016 The Authors, published by EDP Sciences.
News Article | October 4, 2016
A network of tubes whisking passengers across a country at close to the speed of sound may seem like a sci-fi pipe dream, but in the already futuristic city of Dubai it would fit right in. The city-state just hosted a two-day competition for designs related to a high-speed system known as a hyperloop, in which levitating pods powered by electricity and magnetism would hurtle through low-friction pipes at a top speed of 1,220 kph (760 mph). The idea, first proposed by Tesla co-founder Elon Musk in 2013, is still being tested. But Dubai has already partnered with Los Angeles-based Hyperloop One to examine possible lines going to the United Arab Emirates' capital, Abu Dhabi, and elsewhere. At a presentation Tuesday, Hyperloop One suggested such a network could include an undersea tunnel connecting Abu Dhabi to Doha, Qatar, with a trip time of just under 22 minutes. The network could extend to the island nation of Bahrain and Saudi Arabia. "Imagine that you can live in Riyadh, work in Dubai, have your dinner in Abu Dhabi and watch a movie in Qatar," Saif al-Aleeli, the young CEO of the Dubai Future Foundation, which hosted the competition, told The Associated Press. "Dubai is trying, as a mission, to prove that concept." The heart of this effort can be seen around the Emirate Towers, where the office of Dubai's ruler, Sheikh Mohammed bin Rashid Al Maktoum, looks out on a glass skyline that was mainly built in the last 15 years. Outside, construction has begun on the Museum of the Future . The world's first office entirely built of material made by 3-D printers sits nearby. A mall underneath the towers looks like one of Dubai's many luxury shopping centers until you see the robot assisting customers at a local bank branch. Just around the corner is the Dubai Future Foundation, the government initiative that helped sponsor the hyperloop competition with the city-state's Roads and Transportation Authority. Sheikh Mohammed visited the foundation Monday, putting on a virtual-reality headset and walking among its chic offices filled with 3-D printers and other gadgets. "Our goal is to anticipate challenges and explore future investment opportunities," a message on Sheikh Mohammed's official Twitter account later read. "We all need to think afresh as we develop for the future." It's unclear how much a regional hyperloop network would cost — or who would pay for it at a time when Gulf budgets are strained by low global oil prices. But Dubai is already home to the world's tallest building, the longest driverless metro line and long-haul carrier Emirates. A hyperloop network could cement its status as a global transit hub for decades to come. Government-backed port operator DP World has held talks with Hyperloop One about cutting transport times for its cargo, said Chris Vasquez, the director of product development for the hyperloop company. Such a system could be in place in Dubai as early as 2020, he said. "This is a place where big things happen," Vasquez said. "They don't get bogged down by regulations, not that those things aren't important and don't deserve due diligence, but we've all seen projects stalled by over-crippling regulatory environments where it just stalls for years and years and years." At the ceremony Tuesday, selected groups involved in the 48-hour hyperloop project presented ideas for a possible track between Al Maktoum International Airport at Dubai World Central, Dubai International Airport and Fujairah International Airport. Under their plans, the hyperloop trip of some 145 kilometers (90 miles) over a mountain range would be 10 minutes or less, compared to the current hour and 20 minutes by road. Focusing less on the science, those involved offered visions of hyperloop stations and seating inside bullet-shaped transit cars. A team from Paris-based transit company Systra won the competition, walking away with a certificate and a crystal trophy resembling Dubai's Burj Khalifa, the world's tallest building. But among the contest's competitors were few Emiratis, though others attended the event watched over by white-gloved Asian waiters serving hors d'oeuvres. Asked about the low participation, al-Aleeli, the Dubai Future Foundation CEO, said Emirati university students on hand for the event would help lead the UAE in future innovations. "We are paving the road to build the right future for them," he said.
Barla G.,Polytechnic University of Turin |
Bonini M.,Polytechnic University of Turin |
Rock Mechanics in Civil and Environmental Engineering - Proceedings of the European Rock Mechanics Symposium, EUROCK 2010 | Year: 2010
Recent innovations in yield-control support systems allow to increase the rate of advance when tunneling in difficult conditions is associated with severely squeezing rock. Such systems which imply the insertion in the lining of highly deformable concrete elements are being adopted successfully in tunneling projects using conventional excavation methods. The Saint Martin access adit excavated in a Carboniferous Formation along the Base Tunnel of the Lyon-Turin rail line is presented as a case study. Numerical analyses are discussed to compare the results of computed and measured performance of a typical monitored section and to find out possible optimizations of the support system adopted. © 2010 Taylor & Francis Group.
Barla G.,Polytechnic University of Turin |
Bonini M.,Polytechnic University of Turin |
Tunnelling and Underground Space Technology | Year: 2011
Recent innovations in yield-control support systems allow to increase the rate of advance when tunnelling in difficult conditions is associated with severely squeezing rock. Such systems which imply the insertion in the lining of highly deformable concrete elements are being adopted successfully in tunnelling projects using conventional excavation methods. The Saint Martin access adit excavated in a Carboniferous Formation along the Base Tunnel of the Lyon-Turin rail line is presented as a case study. Numerical analyses are discussed to compare the results of computed and measured performance of a typical monitored section and to find out possible optimizations of the support system adopted. © 2010 Elsevier Ltd.
Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 7th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground | Year: 2012
A consortium of major French contractors is currently realizing the works for Line 3 of the Underground of Cairo (Cairo is the first African city to have an Underground, back in the eighties). The line is divided into 4 phases, phase 1 (4.2 km) under construction, phase 2 (6.5 km) works to start soon, phase 3 (16.6 km) under design and phase 4 (12 km) still to be designed. This 40 km new line will connect western Cairo (left bank of the river Nile) to Cairo Business District on the right bank downtown and Cairo Airport on the east of the city. Ground conditions are made by a layer of clay/silt (up to 10 m) overlying a sandy silt layer and sand from 20 m up to 90 m and more. Ground water table is a couple of meters below street level. 1 km before the end of phase 1 a major collapse occurred in the slurry TBM, whose causes are yet to be understood. TBM recovery is being carried out through a shaft that is being excavated 3 m in front of the collapse point. Its diaphragm walls have been driven DOWN to a clay layer underlying the sand level to guarantee for watertightness (over 90 m panel depth). Ground freezing is then carried out to reach the shield, that is going to be extracted from the shaft, allowing the tunnel lining to be completed. The remaining tunnel of phase 1, as well as the beginning of phase 2 and the whole of phase 3 are going to be excavated with a new slurry machine that is expected to arrive to Cairo to complete the works. © 2012 Taylor & Francis Group.
Ceder A.A.,University of Auckland |
Ceder A.A.,Technion - Israel Institute of Technology |
IEEE Transactions on Intelligent Transportation Systems | Year: 2014
With advances in the intelligent-transportation-system technology of passenger information systems, the importance of even and clock headways in transit timetables is reduced. This allows for the creation of timetables with even average maximum passenger loads on individual vehicles. The maximum load attained is a load standard desired at the maximum-load stop. These timetables minimize overcrowding and produce more reliable and efficient schedules than other timetables from both passenger and operator perspectives. Thus, it will make the transit service more attractive. This paper provides a procedure for the creation of transit timetables to improve the correspondence of vehicle departure times with passenger demand. The algorithm developed yields departure times (a timetable) for vehicles to achieve an even maximum load on each vehicle and a smoothing consideration in the transition between time periods. A case study was carried out using the data of one bus route in Auckland, New Zealand, with modeling and simulation analyses. The results of the even maximum load on individual vehicles, in terms of the elimination of overcrowding and schedule adherence, exhibit significant improvement over timetables with even headways or with headways based on hourly even maximum loads. © 2000-2011 IEEE.
Construction and Building Materials | Year: 2015
Abstract Slab track systems have been developed and implemented in a number of situations, including high speed, in a number of countries. A worldwide review of system types and implementations will be presented, with some focus on projects where SYSTRA was involved. Design criteria, construction techniques will be covered as well as feedback from operation for some cases. Elements and methodology for LCC assessment of some of the systems will also be included, including comparison with ballasted track systems in specific instances. A focus on very high speed will then identify the potential advantages of slab track systems in that domain, but also the attention points to focus on when thinking of slab track for very high speed, including e.g. noise questions. Finally, optimization potentials with respect to existing concepts will be presented. © 2015 Elsevier Ltd.
Systra | Date: 2012-03-29
Common metals and their alloys; building materials of metal; transportable buildings of metal; metal materials for railway tracks; non-electric cables and wires of common metal; ironmongery and small items of metal hardware; metal pipes; safes; ores; buildings of metal; scaffolding of metal; boxes of common metal; chests of metal; packaging containers of metal; monuments of metal; works of art of common metal; statues or figurines (statuettes) of common metal; registration plates, of metal. Machine tools; motors and engines (other than for land vehicles); machine coupling and transmission components (other than for land vehicles); agricultural implements other than hand-operated; incubators for eggs; automatic distribution machines; agricultural machines; suction machines for industrial purposes; woodworking machines; automatic handling machines (manipulators); packaging or packing machines; pumps (machines); electric hand drills; clippers (machines); bulldozers; grinding machines; centrifugal machines; lifts, other than ski-lifts; machines for sewing, for knitting; ironing machines; washing machines; electric kitchen machines; sorting machines for industry; saws (machines); robots (machines); printing machines; drilling machines; elevators lifts; electric knives. Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signaling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic recording media, sound recording or optical discs; compact discs, DVDs and other digital recording media; mechanisms for coin-operated apparatus; cash registers; calculating machines; data processing equipment and computers; fire-extinguishing apparatus; computer game software; software (recorded programs); computer peripheral devices; electric batteries; detectors; electric wires; electric relays; diving suits, gloves or masks; clothing for protection against accidents, irradiation and fire; protection devices for personal use against accidents; spectacles (optics); optical goods; spectacle cases; diagnostic apparatus, not for medical purposes; integrated circuit cards smart cards; safety tarpaulins. Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes; air-conditioning apparatus or installations; freezers; pocket torches; electric coffee machines; cookers; lighting apparatus for vehicles; heating or air-conditioning installations for vehicles; air or water purifying apparatus and machines; sterilizers. Vehicles; apparatus for locomotion by land, air or water; motors and engines for land vehicles; suspension shock absorbers for vehicles; bodies for vehicles; anti-skid chains; vehicle chassis or bumpers; sun-blinds adapted for automobiles; safety belts for vehicle seats; electric vehicles; caravans; tractors; mopeds; cycles (bicycles); frames, kickstands, brakes, handlebars, wheel rims, pedals, tires, wheels or saddles for cycles or bicycles; strollers; handling carts. Jewelry; jewelry products, precious stones; timepieces and chronometric instruments; precious metals and their alloys; works of art of precious metal; jewelry cases caskets; boxes of precious metal; watch cases, straps, chains, springs or glasses; key rings (trinkets or fobs); statues or figurines (statuettes) of precious metal; cases or presentation cases for timepieces; medals. Printed matter; bookbinding material; photographs; stationery; adhesives (glues) for stationery or household purposes; artists materials; paintbrushes; typewriters and office requisites (except furniture); instructional or teaching material (except apparatus); printing type; printing blocks; paper; cardboard; boxes of cardboard or paper; posters; albums; cards; books; newspapers; prospectuses; pamphlets; calendars; writing instruments; engravings or lithographic works of art; paintings (pictures), framed or unframed; aquarelles; patterns for dressmaking; graphic prints; drawing instruments; handkerchiefs of paper; face towels of paper; table linen of paper; toilet paper; bags and small bags (envelopes, pouches) of paper or plastics for packaging; garbage bags of paper or of plastics. Rubber, guttapercha, gum, asbestos, mica; plastics in extruded form for use in manufacture; packing, stopping and insulating materials; flexible pipes, not of metal; rubber stoppers; packing (cushioning, stuffing) materials of rubber or plastic; plastic sheeting for agricultural purposes; foils of metal for insulating; insulating gloves, strips, fabrics or varnishes; artificial or synthetic resins (semi-finished goods); bags and sachets (envelopes, pouches) of rubber, for packaging; fibreglass or glass wool for insulation. Non-metallic building materials; rigid pipes, not of metal, for building; asphalt, pitch and bitumen; transportable buildings, not of metal; monuments, not of metal; buildings, not of metal; scaffolding, not of metal; building glass; insulating glass (building) concrete; cement; works of art made of stone, concrete or marble; statues or figurines (statuettes) of stone, concrete or marble; stained-glass windows; lumber; manufactured timber. Advertising; business management; business administration; office functions; direct mail advertising; arranging newspaper subscriptions (for others); arranging subscriptions to telecommunication services for others; presentation of goods on communication media, for retail purposes; business management and organization consultancy; book-keeping; document reproduction; employment agencies; computerized file management; organization of exhibitions for commercial or advertising purposes; on-line advertising on a computer network; rental of advertising time on communication media; publication of publicity texts; rental of advertising space; dissemination of advertisements; public relations. Insurance underwriting; financial affairs; monetary affairs; real estate affairs; provident fund services; home banking; issue of travelers checks or credit cards; real estate appraisal; financial management; real estate management; financing services; financial analysis; raising or investing capital; financial consultancy; financial evaluation (insurance, banking, real estate); fund investments. Construction; construction information; construction consultation; building construction supervision; masonry; plastering or plumbing; roofing services; insulation services (construction); demolition of buildings; rental of construction equipment; cleaning of building interiors, building exteriors or windows; cleaning or servicing of vehicles; vehicle breakdown assistance (repair); disinfecting; rat exterminating; laundering; renovation of clothing; care, cleaning and repair of leather or fur; linen ironing; shoe repair; retreading or vulcanization (repair) of tires; office machine and equipment installation, maintenance and repair; machinery installation, maintenance and repair; installation, maintenance and repair of computer hardware; clock and watch maintenance and repair; repair of locks; furniture restoration; shipbuilding. Telecommunications; information about telecommunication; communication via computer terminals or via fiber-optic networks; communications by radio or telephone; cellular telephone communication services; providing user access to global computer networks; providing chat forums on the Internet; providing access to databases; electronic bulletin board services (telecommunication services); providing telecommunication connections to a global computer network; news agencies; rental of telecommunication equipment; radio or television programs (broadcasts); teleconferencing services; electronic messaging services; rental of access time to global computer networks. Transport; packaging and storage of goods; arranging of tours; transportation information; transportation logistics; delivery of newspapers; distribution of water, electricity or power; distribution (goods delivery); towing; rental of garages or parking places; vehicle rental; taxi transport; booking of seats for travel; physical storage of electronically-stored data or documents. Educational services; providing of training; entertainment; sporting and cultural activities; information relating to entertainment or education; vocational retraining; providing recreation facilities; publication of books; lending libraries; videotape film production; rental of motion pictures; rental of sound recordings; rental of video cassette recorders or of radio and television sets; rental of show scenery; videotape editing; photography services; organization of competitions (education or entertainment); arranging and conducting of colloquiums, conferences or congresses; organization of exhibitions for cultural or educational purposes; booking of seats for shows; game services provided on-line from a computer network; gambling services; publication of electronic books and journals on-line; electronic desktop publishing. Evaluations, assessments and research in the fields of science and technology provided by engineers; design and development of computers and software; research and development of new products for others; technical project studies; architecture; design of interior decor; development (design), installation, maintenance, updating or rental of software; computer programming; computer system analysis; computer system design; consultancy in the field of computers; data conversion of computer programs and data (not physical conversion); conversion of data or documents from physical to electronic media; vehicle roadworthiness testing; graphic arts designing; styling (industrial design); authenticating works of art.
News Article | December 13, 2016
SÃO PAULO, 13 de dezembro de 2016 /PRNewswire/ -- Líder mundial de infraestrutura de transporte público, a francesa SYSTRA anuncia a aquisição da VETEC Engenharia, especializada em serviços de elaboração, supervisão e gestão de estudos e projetos de engenharia. Com a aquisição, Systra pass...