Troisdorf

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coat of arms Germany map
Coat of arms of the city of Troisdorf
Troisdorf
Map of Germany, position of the city of Troisdorf highlighted

Coordinates: 50 ° 49 ′  N , 7 ° 10 ′  E

Basic data
State : North Rhine-Westphalia
Administrative region : Cologne
Circle : Rhein-Sieg district
Height : 55 m above sea level NHN
Area : 62 km 2
Residents: 74,953 (Dec. 31, 2019)
Population density : 1209 inhabitants per km 2
Postcodes : 53840, 53842, 53844
Primaries : 02203, 02241, 02246, 0228
License plate : SU
Community key : 05 3 82 068
City structure: 12 city ​​districts or localities

City administration address :
Kölner Strasse 176
53840 Troisdorf
Website : www.troisdorf.de
Mayor : Klaus-Werner Jablonski ( CDU )
Location of Troisdorf in the Rhein-Sieg district
Rheinland-Pfalz Bonn Köln Kreis Euskirchen Oberbergischer Kreis Rheinisch-Bergischer Kreis Rhein-Erft-Kreis Alfter Bad Honnef Bornheim (Rheinland) Eitorf Hennef (Sieg) Königswinter Lohmar Meckenheim (Rheinland) Much Neunkirchen-Seelscheid Niederkassel Rheinbach Ruppichteroth Sankt Augustin Siegburg Swisttal Troisdorf Wachtberg Windeckmap
About this picture

Troisdorf (  [ ˈtroːsdɔrf ] with Dehnungs -i ) is the most populous city in the Rhein-Sieg district in North Rhine-Westphalia and lies on the right bank of the Rhine between Cologne and the federal city of Bonn . The city lies in the southeast of the Cologne Bay between the southern foothills of the Bergisches Land in the north and the Siegauen in the south. Please click to listen!Play

geography

Muzzle of the Agger (front) into the Sieg (back)
Aggerwehr

Troisdorf lies on the Sieg , a tributary of the Rhine , and on the Agger , which in turn is a tributary of the Sieg and forms the city limits to the neighboring town of Siegburg . In Troisdorf the Agger flows into the Sieg. The Mühlengraben flows parallel to the course of the Sieg, which until the end of the 20th century served, among other things, to drive two grain mills in Troisdorf's urban area. The water is diverted from the Agger at the Agger weir and returned to the Sieg at Bergheim . The highest elevation in the urban area is 135.6  m above sea level. NHN the Telegraphenberg in the Wahner Heide , it reaches its lowest point at 46  m above sea level. NHN in the area of ​​the Sieg estuary .

City structure

Troisdorf consists of twelve districts , which are also localities with a town councilor :

district Residents
Altenrath 2,274
Bergheim 5,558
Eschmar 3,186
Friedrich Wilhelms Hut 7.160
War village 3,189
Troisdorf center 17.197
Dustbin 1.965
Oberlar 5,910
Rotterdam lake 3,730
Sieglar 8,831
Speak 13,011
Troisdorf-West 5,747

Another 7 residents without location information; Status of the stated number of inhabitants (including secondary residence ): December 31, 2018

Neighboring communities

In the north Troisdorf borders on Cologne and Rösrath , in the east on Lohmar and Siegburg , in the southeast on Sankt Augustin , in the south on Bonn and in the west on Niederkassel .

climate

Climate diagram for Cologne / Bonn Airport

history

Troisdorf at the beginning of the 19th century
Sieglar - market square with school, around 1915
Mansion of Wissem Castle
The Friedrich Wilhelm Hut in 1853

Troisdorf is originally referred to as Truhtesdorf in a document from the Siegburg Benedictine Abbey Michaelsberg from 1064.

The oldest documented settlements in today's urban area are Eschmar and Sieglar , which were mentioned as early as 832. The former knight's seat Burg Wissem , which is now near the city center on the edge of the forest, speaks for an early settlement .

The community of Troisdorf belonged to the mayor's office of Siegburg from 1816 to 1899 .

After the First World War , the mayor's office was occupied by Allied soldiers. These remained until January 29, 1926.

industrialization

The real upswing of the city began with industrialization in the 19th century. In 1825, the former head of the mining office in Bonn, Windgassen, founded an iron smelter at Mühlengraben near the Agger - Sieg estuary. Emil Langen took over this in 1843 and named the settlement Friedrich-Wilhelms-Hütte , which in turn was taken over by Mannstaedt-Werke in 1913.

In the second half of the 19th century, Troisdorf's location on the railway line on the right bank of the Rhine , the Sieg line and the freight train route to Speldorf made it interesting for industrial companies. In 1887, the Rheinisch-Westfälische Sprengstoff-AG (RWS) under its general director Emil Müller started up the Troisdorf detonator factory for the production of primers and detonators, which later became a location of Dynamit Nobel AG.

From 1951 to 2002 there was a Belgian barracks in each of the districts of Spich and Altenrath .

City rights

On March 23, 1952, Troisdorf received city ​​rights at a festive ceremony .

Incorporations

In the course of the municipality reform , the villages of the municipality of Sieglar (Bergheim, Eschmar, Kriegsdorf, Müllekoven, Oberlar, Sieglar and Spich) as well as the villages of Friedrich-Wilhelms-Hütte (previously Menden ) and Altenrath (previously Lohmar ) were replaced. new localities in the city of Troisdorf. Until then, both the RWS fuse factory and the Troisdorf train station were 7 and 6 tenths respectively (as of 1924) in the Sieglar community (in Oberlar). Multiple efforts from 1906 to incorporate the city of Troisdorf Oberlar (including tax revenue) remained unsuccessful until 1969. In 1999 the city districts Troisdorf-West and Rotter See were created through divisions .

Population development

Until the 19th century Troisdorf only had a few hundred inhabitants. Only with industrialization in the 20th century did population growth accelerate. In 1895 only 2,825 people lived in the town, in 1968 there were already 18,000. Due to numerous incorporations on August 1, 1969, the population rose to 48,837. On June 30, 2005, the official number of inhabitants for Troisdorf was 74,613 according to updates by the State Office for Data Processing and Statistics North Rhine-Westphalia (only main residences and after comparison with the other state offices).

The following overview shows the number of inhabitants according to the respective territorial status. These are census results or official updates from the State Statistical Office. From 1871, the information relates to the “local population”, from 1925 to the resident population and since 1987 to the “population at the location of the main residence”. Before 1871, the number of inhabitants was determined according to inconsistent survey procedures.

date Residents
3 December 1861 (1) 1,282
December 2, 1895 (1) 2,825
December 1, 1905 (1) 4,700
December 1, 1910 (1) 5,939
June 16, 1925 (1) 9,400
June 16, 1933 (1) 9,800
May 17, 1939 (1) 11,180
29 October 1946 (1) 11,679
September 13, 1950 (1) 13,229
25 September 1956 (1) 15,300
date Residents
June 6, 1961 (1) 16,400
December 31, 1965 17,532
May 27, 1970 (1) 51.271
December 31, 1975 56,402
December 31, 1980 58,618
December 31, 1985 60,981
May 25, 1987 (1) 60,079
December 31, 1990 64,430
December 31, 1995 68,778
December 31, 2000 72,678
date Residents
December 31, 2005 76,596
December 31, 2006 76.714
June 30, 2007 76,707
December 31, 2010 76,987
December 31, 2011 77.286
June 30, 2012 77.016
December 31, 2016 74,616
December 31, 2017 74,870
December 31, 2018 77,765
Population development of Troisdorf from 1861 to 2017
(1) Census result

The current population includes people who have their second place of residence in Troisdorf. With 8,652 foreign residents, Troisdorf has a migrant share of 11% of the total population. In Troisdorf there is still a surplus of women with 39,123 women compared to 37,864 men.

politics

City council

The local elections on May 25, 2014 had the following results:

Parties and constituencies %
2014
Seats
2014
%
2009
Seats
2009
Election graph
CDU Christian Democratic Union of Germany 41.4 22nd 43.6 22nd
City council election 2014
Turnout: 50.01% (2009: 48.07%)
 %
50
40
30th
20th
10
0
41.36
32.68
8.01
3.39
5.04
1.49
3.61
1.64
2.77
Gains and losses
compared to 2009
 % p
   4th
   2
   0
  -2
  -4
  -6
-2.21
+1.79
-2.78
-4.08
+1.54
-0.69
+3.61
+1.64
+1.17
SPD Social Democratic Party of Germany 32.7 17th 30.9 15th
GREEN Alliance 90 / The Greens 8.0 4th 10.8 5
FDP Free Democratic Party 3.4 2 7.5 4th
LEFT The left 5.0 3 3.5 2
UWG rainbow Independent community of voters for civil rights Troisdorf RAINBOGEN 1.5 1 2.2 1
Referendum From now on ... democracy through referendum , for democracy through referendum 0.9 0 1.6 1
TBU Troisdorf Citizens' Union 1.0 0 - -
Troisdorf town hall
AfD Alternative for Germany 3.6 2 - -
Hasselmann Individual applicants 0.2 0 - -
BIG Alliance for Innovation and Justice 0.7 0 - -
Pirates Pirate party 1.6 1 - -
total 100.0 52 100.0 50
Voter turnout in% 50.0 48.1
Troisdorf town hall

mayor

The mayor has been working full-time in Troisdorf since 1999. He heads the city administration and represents the city of Troisdorf externally. He is currently assisted by three full-time councilors (for management tasks in administration) and four honorary vice mayors (for representative tasks).

The following people have been mayors since 1948:

full-time:

coat of arms

Troisdorf coat of arms
Blazon : "In silver, two floating black rods connected to one another in the form of the capital letter T, at each end of the cross rod a red ball, and the longitudinal rod a blue ball."
Justification of the coat of arms: The coat of arms was redesigned after the municipal reform. It represents the initial T of the city. The four spheres represent the communities from which today's Troisdorf emerged. The T is reminiscent of a molecule based on the city's chemical industry.

Newer logo of the city of Troisdorf

Troisdorf has a logo that partially replaces the coat of arms. It consists of several spheres that are supposed to symbolize the location of the districts and their size.

City partner and sponsorships

Culture and sights

Troisdorf city gate

Museums

  • Picture book museum in Wissem Castle . The only picture book museum in Europe.
  • Fishing museum in Bergheim. A museum built in 2010 by the Bergheim an der Sieg Fisheries Brotherhood , which presents the history of the guild and the place.
  • Troisdorf plastics museum on the HT site. History of the plastic region Troisdorf, in which the plastic windows and the first PVC floor coverings were developed.
  • Museum for town and industrial history (Musit) Troisdorf at the castle Wissem .
  • The portal to the Wahner Heide at Wissem Castle.

Buildings

Partial cladding of the imperial ruin with pictures by the artist HA Schult
The picture book museum has been located at Wissem Castle since 1982 . After the renovation as part of the Regionale 2010, the facility is also home to the portal to Wahner Heide, the Museum of Urban and Industrial History Troisdorf (MUSIT), the learning project KennenLernenUmwelt (KLU), the registry office, the creative workshop, the local history association, the Heinz Müller Foundation and a tourist information office.
  • Troisdorf city gates
Two stainless steel constructions designed by Joachim Bandau and Victor Bonato in 1984 with transparent, reflective and water-overflowing glass surfaces, which are located at the beginning and end of the pedestrian zone .
The event hall was opened in 2014.

Parks

The city has a number of protected or natural areas over its entire area, which are used by the citizens of Troisdorf and other cities in the area as local recreation areas.

The yaw ferry at Bergheim
  • The Siegaue is located at the mouth of the Sieg. When the water floods, the floodplain becomes a water landscape of immense proportions. In dry times, the Siegaue is home to many species of birds that use them as breeding grounds. But local recreation is also provided. In addition to many cycling and hiking trails that invite you to explore the Siegaue and the nearby banks of the Rhine, the Zur Siegfähre restaurant and the eponymous ferry are located just before the mouth of the Sieg . This place is known far beyond the borders of Troisdorf.
  • There is also a spacious park in the Spich district that borders directly on the Wahner Heide . The Broich House and the Spicher Bürgerhaus are located on the edge of the park .
  • The forest park is located in Troisdorf-Mitte. There are hiking trails and animal enclosures around a pond that once housed magnificent goldfish.
  • Another park is located in the Friedrich-Wilhelms-Hütte district. In addition to green areas, it includes various play facilities, a skate park and a fairground that is used for flea markets and circus tents. Adjacent is, on the one hand, the district house, in which the youth welfare office offers various advice options, and, on the other hand, an allotment garden for the residents and an educationally supervised adventure playground .
  • In the nature reserve Wahner Heide was the Wahn shooting range , most recently a military training area for the Belgian armed forces, which were stationed in Troisdorf for many years. Partly it is still a training area for the Bundeswehr today , but most of it is free to use for hikers. The Wahner Heide can be explored wonderfully on the paved paths. However, it is forbidden to leave the paths due to the ammunition pollution and to protect the landscape. The heathland is home to a variety of rare plants and animals.

Natural monuments

Hollow stone in spich

Memorials

Escape boat found by the CAP ANAMUR in the South China Sea at the end of April 1984. It was occupied with 52 people. Today it stands as a memorial in Troisdorf

In Troisdorf, the victims of the Nazi era are commemorated by a stele on Jahnplatz, by stumbling blocks and the Vietnamese refugees by a flight boat in Troisdorf-Mitte.

Former sights

  • Boxhohn oak in Altenrath
  • Kaiserbauruine : This unfinished hotel was an unwanted landmark of Troisdorf on the A 59 from 1973 until it was blown up on May 13, 2001 .

Culinary specialties

A culinary specialty is the Troilsch (based on Kölsch ), as well as the TroPi ( Pils ) and also a Troisdorf wheat beer. Originally, these types of beer were brewed in the “brewery” in what was then the community center. After moving and reopening in 2012, the restaurant now operates under the name "Bierhaus", and the beers are now brewed outside of Troisdorf.


Sports

The Aggerstadion, venue of the Sportfreunde Troisdorf

There are numerous sports clubs in Troisdorf . The better known include:

Other sports clubs are:

  • Karate School Troisdorf e. V.
  • Karate Dojo Ochi Troisdorf e. V.
  • the Box Club Troisdorf 48 e. V.
  • the German Life Saving Society , Troisdorf local group e. V.
  • the radio amateurs of the DARC e. V. Local association G27 Troisdorf.
  • Guard dance clubs such as:
    • TC Altenrather Sandhasen 1992 e. V
    • TC Blau-Weiß Troisdorf 1971 e. V.
    • TC Burggarde Spich e. V.
    • TC Fidele Sandhasen Oberlar
    • De Höppebeenche of KG Grün-Weiß Bergheim
    • TSC Rhein-Sieg Guard 1994 e. V.
  • the handball club HSV Troisdorf e. V.
  • the hockey club HTC Schwarz Weiß Troisdorf e. V.
  • the athletics clubs Troisdorf Athletics Community and LAZ Puma Troisdorf / Siegburg
  • the jazz and modern dance ballet of the Jazz Devils Dance Company
  • the cycling club RV Blitz Spich 1908 e. V.
  • the 1st chess club Troisdorf
  • the diving club Sub-Aqua-Club Troisdorf e. V.
  • the tennis club TC-Spich and other tennis clubs
  • the Troisdorf swimming club 1923 e. V. - Water lovers blue and white
  • the Turnvereine Troisdorf Turnverein 1891 e. V., Sieglarer Turnverein 1897 e. V., Turnverein 1909 e. V. Bergheim / victory

Economy and Infrastructure

economy

Troisdorf has a total of ten industrial and commercial areas:

  • Camp Spich Business Park
  • Belgische Allee (Spich)
  • Beaver Trail (Spich)
  • Redcarstrasse / Langbaurghstrasse (Spich)
  • Bergheim
  • Josef-Kitz-Strasse / Speestrasse (Friedrich-Wilhelms-Hütte)
  • Industrial city park
  • Service axis Mülheimer Straße / Kaiserstraße
  • Rotter Viehtrift / Luxemburger Strasse
  • Junkersring Airport Business Park

Established businesses

Companies from the chemical industry such as Dynamit Nobel, HT Troplast , Evonik Degussa GmbH (formerly Hüls Troisdorf), Orica Mining Services and the deep-drawn plastic packaging manufacturer silver plastics, the steel industry such as the special profile manufacturer Mannstaedt-Werke and the field of mechanical engineering as the company Reifenhäuser . Due to the short distance to Cologne / Bonn Airport , several logistics companies have settled in Troisdorf; The airline Arcus-Air is based there and the mail center 53 of Deutsche Post AG is in the Troisdorf district of Spich. The Happy Digits “Service Center” was also located in Spich. The logistics group DHL has also set up its development center (DHL Innovation Center) in Troisdorf. Formel D is an international service provider for the automotive and supplier industry, which has its headquarters here. In 2006, Prämeta , manufacturer of special fittings and medical technology, moved its headquarters to Troisdorf.

traffic

Road traffic

Troisdorf is connected to the trunk road network via the federal highway 59 and via feeder to the federal highway 3 . The federal highway 8 runs through the urban area . The south-eastern border to Siegburg is federal highway 56 .

The extension of Landesstraße 332 , which had been planned for decades as a bypass for parts of Sieglar and Eschmar, only existed on plans for a long time. As early as the 1980s, shortly before its completion due to procedural errors, the plan approval procedure had been declared null and void, so that this procedure had to go through all stages again. When the procedure was reissued, the location of the route was also changed in order to take account of changed requirements for noise protection; Specifically, the route was moved significantly more north to the Eschmar Garden City . Since the route has been kept free for construction for decades, construction can begin immediately after the procedure has been completed and becomes legally binding; the necessary financial resources are available to the State Office for Road Construction NRW . In November 2010, the Cologne district government declared that the planning approval procedure for the first construction phase of the bypass between the old route from Landesstraße 332 to Kreisstraße 29n can be carried out immediately. Building law is thus given.

After decades of planning and partial completion, the route of the EL 332 can now be used between Troisdorf-Sieglar and Troisdorf-Eschmar; only the last construction phase up to the BAB 59 is missing.

On January 1, 2018, 50,020 motor vehicles were registered in the city, including 43,139 cars.

Rail transport

Former station building

At Troisdorf station, the railway line coming from Cologne splits into the victory line to Siegen and the right Rhine line to Neuwied . In regional traffic, there is an hourly trip on the RE 9 line on the Victory Line. On the right Rhine route, the RE 8 and RB 27 lines offer two trips per hour to Koblenz, with the RB 27 running from Cologne / Bonn Airport to Troisdorf station connects. In addition to the Troisdorf train station and the station in Spich, there is another stop in the Friedrich-Wilhelms-Hütte district on the right-hand Rhine route.

The S-Bahn line S 12 runs three times an hour from Cologne to Hennef and beyond once further to Au (Sieg) in the municipality of Windeck . Line S 19 connects Cologne / Bonn Airport at the same time, also runs to Hennef and continues every hour to Au (Sieg). In the evening and at the weekend, the shorter line S 13 runs through the airport and ends in Troisdorf.

All S-Bahn trains stop at Troisdorf train station and at Spich stop in the city. For Troisdorf there is a ten-minute cycle in the direction of Cologne by superimposing the S 12 and S 13 / S 19 on weekdays. Regional traffic offers at least another three connections per hour during the day. All in all, Cologne and the airport can be reached around the clock on all weekdays at least every hour or half hour.

The extension of the S 13 line along the right Rhine route to Bonn-Beuel and Bonn-Oberkassel is under construction well into the 2020s .

The high-speed route Cologne – Rhine / Main runs through Troisdorf, but without the possibility of changing passengers. This is given at the neighboring Siegburg / Bonn train station . As part of the construction of the high-speed line, the platforms were renewed and raised, and the platform tunnel was equipped with elevators for barrier-free use. As a replacement for the old station building from 1969, a much larger, six-storey commercial building with a hotel was built between 2017 and 2019. With the new building, the mobility center , which is operated jointly by DB and RSVG employees, moved in.

Bus transport

The tariff of the Verkehrsverbund Rhein-Sieg (VRS) applies to public transport in Troisdorf . Since 2014, the city bus lines of the Rhein-Sieg-Verkehrs-Gesellschaft have been running every twenty minutes on weekdays, with a focus on connections to the S-Bahn in Troisdorf train station and at the Spich stop. The most important bus connections are line 501, Siegburg Bf - Troisdorf Bf - Niederkassel - Lülsdorf , and 551, Troisdorf Bf - Bonn Hbf.

Airbus Troisdorf

In long-distance bus traffic , only in 2016 did Flixbus buses stop on a route between Amsterdam and Vienna in Troisdorf.

Air traffic

The Cologne / Bonn airport is partially in Troisdorf city. It can be reached by car in about 15 minutes via the A 59 and by train with the RB 27, S. 13 and S 19 lines, which take 8 to 10 minutes from Troisdorf train station to Cologne / Bonn Airport train station . Because of this proximity, parts of the city are exposed to aircraft noise . The pros and cons of a night flight ban have not only preoccupied the Troisdorf committees for several years.

The Airbus A320-200 of Deutsche Lufthansa with the registration D-AIPM bears the name Troisdorf .

education

In Troisdorf there are thirteen primary schools , a secondary school , a secondary school , two grammar schools , two municipal comprehensive schools , including the Troisdorf European school , and two special needs schools . The Gertrud-Koch-Gesamtschule and the Heinrich-Böll-Gymnasium form the secondary school center in Sieglar and are partly operated on a full-time basis. A cafeteria is integrated in the building of the comprehensive school. The Korcak Realschule and the Geschwister-Scholl-Hauptschule were closed after the 2016/2017 school year.

In the Georg-Kerschensteiner vocational college of the Rhein-Sieg district , which is also located in the Sieglar school center, vocational students from various branches of education are taught. Here you will find technical colleges and higher vocational schools for both technical and social subjects. In addition to social pedagogues, technicians specializing in mechanical engineering and plastics and rubber technology are trained full-time and part-time at the technical schools . Since 2007 the general higher education entrance qualification (AHR) can be obtained at the Fachschule für Sozialpädagogik.

Troisdorf runs a music school and, together with Niederkassel, an adult education center .

There is also a DB Training training center in Troisdorf .

Personalities

People born in today's urban area

To 1900

1901 to 1950

  • Karl Johannes Heyer (1904–1995), Catholic priest and author
  • Franz Ronig (1927–2019), Roman Catholic priest, theologian and art historian
  • Günter Nöfer (1928–2000), politician and member of the state parliament (CDU); from 1964 to 1970 deputy constitutional judge of the state of North Rhine-Westphalia
  • Paul Heuser (* 1929), musician, choir and orchestra conductor
  • Hans Jaax (1933–2000), politician and member of the state parliament (SPD)
  • Wilhelm G. Jacobs (* 1935), philosopher
  • Siegfried Hinterkausen (* 1938 in Altenrath), writer
  • Wilfried Kohlars (1939–2019), football player
  • Hans-Dieter Ahlert (* 1941), painter and object artist
  • Uwe Göllner (* 1945), Member of the Bundestag (SPD) (February 12, 1996 to September 18, 2005) and former (honorary) mayor of Troisdorf (1993 to 1998)
  • Walter Bieber (1948–2017), SPD politician, last honorary mayor of the city
  • Hermann-Josef Sausen (* 1950), diplomat and former ambassador to Iceland and Panama

1951 to 1975

From 1976

People associated with the city

Others

From 2011 to 2012 ZDF filmed the first season of the satirical science show Don't copy! in a demolished house in Troisdorf. Wigald Boning and Bernhard Hoëcker acted as moderators in six episodes .

literature

  • Helmut Schulte: A short history of the city of Troisdorf. Facts and figures. City of Troisdorf, 1999.
  • Peter Paul Trippen: Local history of Troisdorf. Cologne publishing house, Cologne 1940.
  • Michael Werling and Marianne Vogt-Werling: Monument Preservation Plan for the City of Troisdorf (=  series of publications from the Archives of the City of Troisdorf . Volume 31 ). Troisdorf 2010 (as PDF document on CD-ROM).

Web links

Commons : Troisdorf  - Collection of images, videos and audio files

Individual evidence

  1. Population of the municipalities of North Rhine-Westphalia on December 31, 2019 - update of the population based on the census of May 9, 2011. State Office for Information and Technology North Rhine-Westphalia (IT.NRW), accessed on June 17, 2020 .  ( Help on this )
  2. Information according to the digital terrain model (available in the TIM-online map service )
  3. Population figures and population statistics in Troisdorf. City of Troisdorf, December 31, 2018, accessed on September 25, 2019 .
  4. Stefan Villinger: 100 years later: This is how the Rhein-Sieg district experienced its occupiers in 1918. In: Rhein-Sieg Rundschau. December 12, 2018, accessed December 12, 2018 .
  5. Martin Bünermann: The communities of the first reorganization program in North Rhine-Westphalia . Deutscher Gemeindeverlag, Cologne 1970, p. 85 .
  6. Karlheinz Ossendorf: From the detonator to the modern detonator - 100 years of Troisdorf detonators 1886–1986, (approx. 78 pages) Troisdorf September 1986. P. 34 f. - PDF, Part 2: pp. 27–52 kunststoff-museum.de, accessed October 8, 2016.
  7. See the current report from the town hall. The number of Troisdorf residents has continued to rise. Rundblick Troisdorf, January 11, 2011, p. 17.
  8. http://wahlen.kdvz-frechen.de/civitec/kwew2014/05382068/index.htm
  9. ^ Organization of the Troisdorf city administration
  10. Vice Mayor , troisdorf.de
  11. ^ List of the Rhein-Sieg district ( Memento from August 6, 2011 in the Internet Archive )
  12. Troisdorf economic development and city marketing GmbH, www.trowista.de: industrial areas. Retrieved October 15, 2018 .
  13. ^ OVG decision on the Sieglar and Eschmar bypass. on Troisdorf.de
  14. Jablonski welcomed. The future connection of the L 332 and the K 29 is to take place via a roundabout. ( Memento from December 1, 2010 in the Internet Archive ) on Unserort.de
  15. Mobility in North Rhine-Westphalia - data and facts 2018/2019. In: Road traffic. Ministry of Building, Housing, Urban Development and Transport of the State of North Rhine-Westphalia, p. 66 (PDF; 14.2 MB, holdings on January 1, 2018).
  16. The S-Bahn line S 13 is expanded: Troisdorf - Bonn-Oberkassel. Deutsche Bahn AG, accessed on October 27, 2019 .
  17. ^ André Joost: Troisdorf Operational Office Archive. Retrieved August 16, 2017 .
  18. Bettina Plugge: Ferox Real Estate Group implements major project at Troisdorf train station. In: Press release 156th Press Office of the City of Troisdorf, April 5, 2016, accessed on August 16, 2017 .
  19. Project presentation. In: ferox-ig.de. Retrieved November 9, 2019 .
  20. ^ Stefan Hennigfeld: Mobility center opened in Troisdorf. In: zughalt.de. July 23, 2019, accessed November 9, 2019 .
  21. ^ Rhein-Sieg-Verkehrsgesellschaft: The bus network in Troisdorf will be revised with the timetable change on December 14, 2014. ( rsvg.de [accessed on August 15, 2017]).
  22. Dieter Krantz: long-distance bus stop, next stop Troisdorf - Flixbus starts on Thursday. In: Rhein-Sieg-Anzeiger . April 26, 2016. Retrieved April 28, 2016 .
  23. Hannah Schmitt: The long-distance bus stop will be canceled in November. In: General-Anzeiger Bonn. August 4, 2016. Retrieved August 13, 2016 .
  24. Dominik Pieper: Flixbus no longer drives to Troisdorf. In: General-Anzeiger Bonn. January 5, 2017, accessed October 27, 2019 .
  25. Stefanie Diemand: Constantly getting to know foreign cultures . In: Rhein-Sieg-Rundschau . October 11, 2016, p. 29 .
  26. Harry Rowohlt: And bye. Letters not Thrown Away III. Zurich 2016.
  27. ^ Boning and Hoëcker: Against any warning. Retrieved October 10, 2016 .