BVG series IK
| U-Bahn Berlin class IK |
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.jpg) Train 1025 on the test track of the Grunewald workshop
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| Numbering: | 1025-1026 (IK15 / IK15U) 1027–1037 (IK17) |
| Number: | 54 multiple units:
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| Manufacturer: | Stadler Pankow |
| Year of construction (s): | from 2015 |
| Axis formula : | 2'Bo '+ Bo'Bo' + Bo'Bo '+ Bo'2' |
| Gauge : | 1435 mm ( standard gauge ) |
| Length over coupling: | 51,640 mm |
| Height: | 3210 mm |
| Width: | 2400 mm |
| Trunnion Distance: | 7570 mm |
| Bogie axle base: | 1800 mm |
| Top speed: | 70 km / h |
| Hourly output : | 1080 kW |
| Motor type: | Three-phase asynchronous DKOBZ 0606-4 |
| Power system : | 750 V = |
| Power transmission: | Lateral busbar coated from above ( small profile ) or below ( large profile ) |
| Coupling type: | Scharfenberg coupling |
| Seats: | 72/80 |
| Standing room: | 258 |
| Floor height: | 875 mm |
The IK series is a vehicle type for the small-profile network of the Berlin subway . With minor modifications, it can also be operated in the large-profile network, where it has been used on the U5 since October 2017 due to a lack of operational large- profile vehicles . It is currently the only vehicle type that is used in both small and large profile networks.
development
In June 2012, the Berliner Verkehrsbetriebe (BVG) initially ordered two prototypes from Stadler Pankow , which have been tested in regular service since September 2015. The order also includes an option for the subsequent delivery of 24 series vehicles, which are intended to replace the A3L71 series trains from 2017 . The total order has a volume of around 158 million euros. In addition to this order, there is the option to order another 10 vehicles. In 2015, the BVG carried out a survey among its passengers to determine a nickname for the IK series. At the beginning of May 2015, the BVG decided on “Icke”. To what extent this nickname will actually find its way into normal language usage remains to be seen.
In May 2013, the BVG presented a 9.4 meter long 1: 1 model of an end car. Detailed adjustments for the final design were made on this. Production of the prototypes began in April 2014, and final assembly was completed in August of the same year. The first train was delivered at the beginning of February 2015, the second at the beginning of March 2015. These were tested - together as an eight-car train - for several months on test drives with and without passengers. After delays, test trains 1025 and 1026 have been operating on the U1 and U2 lines since September 2015 . In July 2015, a further eleven pre-series vehicles were ordered, which are to be financed from the “Special Asset Infrastructure of the Growing City (SIWA)” and delivered from 2017. In July 2016, the BVG supervisory board approved the purchase of 27 additional vehicles.
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A total of 11 four-car trains from the IK17 series were delivered between July and December 2017. These trains are used to reinforce the large-profile fleet on the U5 line and are given a 17.5 cm wide gap between the platform and the vehicle. Since the use of small-profile wagons in the large-profile network is fundamentally uneconomical and only represents a temporary solution, these trains should also run in the small-profile network later. Furthermore, to compensate for the different platform heights in the large and small profile network, the car bodies had to be raised by around 75 mm by means of supports on the bogies. The ends of the train received coupling adapters for height adjustment. The first use of an IK17 train in passenger service took place on the U5 line on October 27, 2017.
In August 2017, plans were announced to acquire another 20 four-car trains for the large-profile U5 line . The background to this is the increasing shortage of vehicles, which meanwhile leads to the cancellation of journeys, especially in the large profile network. This situation worsened when the planned modernization of 35 double multiple units of the F79 series failed due to their poor condition (cracks on load-bearing elements) and operation beyond 2019 became unlikely. Since the prescribed Europe-wide tender for new vehicles is time-consuming, the BVG board approved an "urgent procurement" of further vehicles of the IK series as an interim solution. On October 25, 2017, the order for the further 20 four-car trains, which are to be delivered from the first half of 2019, was approved by the BVG Supervisory Board. At the end of November 2017, it became known that Stadler's competitor Siemens is taking action against the urgency procurement with a reprimand and may pull it before the state's procurement chamber, which could endanger the delivery of the trains. The complaint was rejected by the public procurement tribunal in February 2018. Siemens responded by filing a lawsuit before the higher court. The dispute was resolved amicably in June 2018. As part of the averting of the action, it was agreed that only 14 more four-car trains (56 cars) would be acquired for the time being and the remaining 6 units (24 cars) could be reordered depending on the actual failures of the F79 series.
The two prototype units 1025 and 1026, designated as IK15, were technically adapted to the IK17 series at Stadler in summer 2017. Among other things, new doors and more stable folding seats were installed. At the end of February 2018, these returned to the subway network and have been referred to as IK15U since then. After adjustment work, these two units and the IK18 units have been able to run in a train set again with trains of the HK06 series for the first time since September 2018. As a result of a software change in the IK trains for vehicle diagnostics and passenger information, these may no longer be coupled to HK trains in operation since April 1, 2020.
From April 3, 2018, the 27 four-car trains of the IK18 series were delivered to BVG every two weeks. There they will primarily be used on the U2 small-profile line and, in the medium term, will replace type A3L71 wagons, among other things. At the beginning of September 2019, the delivery of the IK18 series was completed with the unit 1064.
With the delivery of the first IK20 unit 5065 on May 25, 2020, the next delivery series of the IK series began, which again, like the IK17, will initially be in the large profile on the U5 line in order to have enough rolling stock for the planned end of 2020 To have a connection to the main train station. The gap bridges known from the IK17 were also attached accordingly. Significant differences to previous series are, for example, the new seat upholstery with the name "Urban Jungle", which is based on the well-known worm pattern from older BVG series and can already be found in new vehicles in the bus sector. Far fewer passenger information monitors have also been installed in the passenger compartment. The numbering is also different here. Unlike the previous models, the trains are included in the 5000 range. The reason for this is that in the small profile the numbers from 1070 to 1094 are still occupied by the GI / 1E series, which is in active passenger use, and are therefore no longer free for numbering. The plan is to classify trains in the 1000 range after the GI / 1E series has been withdrawn.
construction
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Technically, the IK series is based on Stadler's Tango tram series . The concept of the HK series of four continuously accessible cars was adopted, whereby two four-car trains can be coupled to form an eight-car train during operation. Coupling with vehicles from the HK series is possible and is sometimes used in passenger operations. The trains also have a polarity switch to enable operation in the large-profile network. Due to the cambered cross-section of the car, the width of the usable passenger space has increased by around ten centimeters compared to the previous vehicles, without coming into conflict with the existing platform edges. The tunnels of the small-profile network are generally suitable for the wider trains, but the pillars had to be moved in some tunnel sections to ensure the safety distance.
The vehicles are air-sprung and equipped with energy-saving lighting and signaling technology as well as new passenger information systems. Each four-car train is barrier-free and has a total capacity of around 330 seats, of which around 80 are seated lengthways and 250 are standing. The multi-purpose areas have been enlarged compared to the previous series, and all cars continue to have video cameras. Through recuperation during braking, an energy recovery rate of around one fifth is expected in everyday operation.
Nine of the IK18 units (1056–1064) and all 14 IK20 units are equipped with passenger counters on the entrance doors .
Evaluation and criticism
The modern passenger information system used for the first time in a Berlin subway vehicle and the clear marking of wheelchair spaces were positively perceived. On the other hand, equipping a four-car train with 72 permanent seats is a negative record for all small-profile vehicles. The IGEB , among others, has criticized the “rock-hard seats” and the BVG's adherence to the window panes.
After a year of trial operation, the IGEB on the one hand points to an "attractive appearance" and good driving characteristics, but criticizes the oppressively tight feeling of space inside. The space gained by the crowning is essentially wasted again by the deep seat. The voluminous monitors installed in the door area also restrict the standing areas there and the view through the train. The arrangement of the multi-purpose areas, which differs considerably from the (detachable) HK train, makes it difficult for passengers who rely on them to find their way around. The insufficient information content of the LCD monitors, which are large enough in themselves, is also criticized. The passenger changeover is unnecessarily prolonged by the - compared to the previous series - delayed door release and the slow door movements.
Web links
Individual evidence
- ↑ BVG supervisory board puts out new subway vehicles . bahninfo.de , June 22, 2012
- ↑ a b More passengers require more vehicles - Report from the 2014 U-Bahn passenger consultation day . In: signal . No. 6 , 2014, p. 18 .
- ↑ Call of May 5, 2015: "Icke" - this is the name of Berlin's new subway
- ↑ a b Berlin's newest top model: The new Berlin subway as a 1: 1 model. Berliner Verkehrsbetriebe, May 8, 2013, accessed on May 17, 2013 .
- ↑ a b BVG introduces the first subway train of the type IK. (PDF) Berliner Verkehrsbetriebe , February 3, 2015, accessed on February 3, 2015 .
- ↑ The second IK pre-series train has arrived. (PDF) Berliner Verkehrsbetriebe , March 5, 2015, accessed on March 6, 2015 .
- ↑ On the U12 there is a subway called "Icke" . Berliner Morgenpost. 2nd September 2015.
- ↑ BVG press release of July 20, 2015
- ↑ BVG orders 27 new "Icke" -type underground trains. Berliner Morgenpost, July 6, 2016, accessed on July 18, 2016 .
- ↑ New subways for Berlin required. Der Tagesspiegel, July 12, 2016, accessed on July 17, 2016 .
- ↑ a b The lack of vehicles is reduced. Der Tagesspiegel, October 25, 2017, accessed on November 21, 2017 .
- ↑ a b Vehicle-manufacturer-Stadler-drives-on-the-track for success. Morgenpost, March 1, 2016, accessed on March 27, 2013 .
- ↑ a b c “Icke” trains of the BVG: U-Bahn fleet grows by more than a hundred cars. Berliner Zeitung, April 6, 2018, accessed on April 6, 2018 .
- ↑ The IK train for the large profile . In: Berliner Verkehrsblätter . No. 8 , 2017, p. 143 f .
- ↑ You, you and Icke. (PDF) Berliner Verkehrsbetriebe , October 27, 2017, accessed on December 21, 2017 .
- ↑ a b Siemens takes action against the purchase of subways. Der Tagesspiegel, November 28, 2017, accessed on November 28, 2017 .
- ↑ BVG urgently needs new cars. Der Tagesspiegel, August 22, 2017, accessed on August 23, 2017 .
- ↑ Siemens fails with complaint against subway order. RBB, February 5, 2018, accessed February 12, 2018 .
- ↑ Siemens is suing against the award of contracts for subways. RBB, February 21, 2018, accessed February 21, 2018 .
- ^ BVG and Siemens settle the dispute. Der Tagesspiegel, July 26, 2018, accessed on July 29, 2018 .
- ^ Siemens and Berliner Verkehrsbetriebe agree. Info 24 - Public Transport Switzerland - Europe, July 28, 2018, accessed on July 28, 2018 .
- ↑ News in brief - U-Bahn . In: Berliner Verkehrsblätter . No. 9 , 2017, p. 183 .
- ↑ News in brief - U-Bahn . In: Berliner Verkehrsblätter . No. 4 , 2018, p. 79 .
- ↑ News in brief - U-Bahn . In: Berliner Verkehrsblätter . No. 2 , 2019, p. 34 .
- ↑ News in brief - U-Bahn . In: Berliner Verkehrsblätter . No. 8 , 2020, p. 168 .
- ↑ This is what Berlin's new subways will look like. Berliner Verkehrsbetriebe , September 17, 2012, accessed on September 20, 2012 .
- ↑ The new subway is too thick. In: Der Tagesspiegel . January 15, 2014, accessed January 26, 2015 .
- ↑ News in brief - U-Bahn . In: Berliner Verkehrsblätter . No. 4 , 2019, p. 78 .
- ↑ The city needs new cars . In: signal . No. 2 , 2015, p. 10 ff .
- ↑ IK goes into series . In: signal . No. 1 , 2017, p. 16 f .