Railways connect users to their workplace, homes, service and entertainment centres, restaurants and beyond. Rail transport systems linking suburbs to city centres are essential for economic and social development. Countries are adapting and expanding their railway systems to mobilise the increasing urban growth and keep the economy on the move – Spain is no exception.
Ferrovial Agroman builds and maintains current railway infrastructures through which millions of people and goods flow. Since 1927, Ferrovial Agroman has laid more than 5,300 kilometres of railway in Spain, including 1,000 kilometres of high-speed rail lines in and outside the country.
The Railways and Transport Department of Ferrovial Agroman is involved in the maintenance and construction of railway lines throughout the Spanish territory. Among all these projects, the recent completion of two high-speed line stretches belonging to the Northwest High-Speed Corridor connecting Madrid with Galicia stand out:
- The construction of the Espiño tunnel
- The assembly and maintenance of the railway superstructure between Olmedo and Zamora.
With this amount of projects, Ferrovial Agroman needed to streamline the process of acquiring data and verifying information. The challenge was solved using a mobile mapping system that captures the railway and all its environment with the speed and efficiency that most rail projects require – the Leica Pegasus:Two.
Overcoming rail riddles
Railway tracks are purpose-built – each track is meant to smoothly guide a specific train, built with the highest specifications, so both pieces of the puzzle fit neatly together. Nothing else but the train can run or stand in the way of a railway. Surveying a railway line, therefore, requires capturing enormous amount of data with the highest precision and standards in the shortest amount of time.
In addition to the usual challenges of surveying a railway, the railway lines in Spain that Ferrovial Agroman oversees are defined by a mountainous landscape with numerous underground works and inaccessible areas. At approximately 8 km, the Espiño tunnel is one of the underground works with the longest corridor distance. The Northwest High-Speed Corridor project, which links the Spanish cities of Olmedo with Santiago de Compostela, has more than 400 km of track assembly, of which 100 km correspond to the Olmedo and Zamora section.
“Conditions to capture railway lines are challenging. If, in addition, the project is a railway line that is in service with limited work times, the speed of acquisition is key,” said David Rodríguez Vega, head of geomatics and topography at Ferrovial Agroman. “Having a system that captures data in a flexible and fast way is key to solving the problems that arise in a new project. The perfect ally to fulfil our goal is the Pegasus:Two, the most efficient and fastest mobile mapping system.”
Speed and precision
Ferrovial Agroman is aware that digital representations enable professionals to make more informed decisions. For the correct execution of rail projects, it is required to have detailed digital data of all assets that form part of the railway infrastructure. To create accurate 3D models that fuse plans with the mirrored reality, experts rely on the Leica Pegasus:Two.
To interfere as little as possible in the railway line, the Pegasus:Two is mounted on a vehicle suitable for driving on roads and rail lines, providing flexibility to leave and occupy the line.
“Having a system that provides speed and quality in the acquisition of information is decisive. The georeferenced point clouds with overlaid images obtained with this mobile mapping system have exceeded expectations and will undoubtedly be applied to new projects,” said Rodríguez Vega.
With a mobile sensor platform that captures not only point cloud and 360° imaging data from additional sensors with survey grade accuracy but incorporates GPS and Inertial Measurement Unit (IMU) positioning systems, quality of information is guaranteed.
“Our end goal is to digitalise railway lines to have all the elements that are part of the infrastructure identified geolocated, and geometrically defined. All data and models generated is the basis for all future projects,” said Rodríguez Vega. “It is without a doubt a great advance towards the digital world – an end that our main clients are demanding.”
Above the rest
The team of experts considered speed and quality of information as the main criteria when selecting a solution to capture their railway projects. Within the commercially available mobile mapping systems, Ferrovial Agroman selected the Pegasus:Two with its specific trajectory calculation software, Leica SiRail, due to several factors that made the mobile sensor platform stand out above the rest:
- Compactness and ease of transport
- Precision with the most advanced GPS systems and IMU inertial systems
- Simplicity to assemble and disassemble the system in the vehicle, calibrate the system, and a control software that is intuitive and easy to use
- Geosystems’ commitment and effort in achieving the success of the project.
A partner you can trust
More than 90 years of experience and 55 years of international activity in 50 countries spread over five continents have made Ferrovial Agroman a leading company in the infrastructure sector.
Ferrovial Agroman trusts Geosystems solutions for large infrastructure projects with outstanding underground works, large assembly projects, and track maintenance where the details are very rigorous.
The company currently uses a wide range of Geosystems software solutions from Leica GeoOffice, Infinity, GeoMos and Cyclone, to CloudWorx plugin for 3DReshaper.
Reli huunganisha watumiaji na mahali pao pa kazi, nyumba, vituo vya huduma na burudani, mikahawa na zaidi. Mifumo ya usafiri wa reli inayounganisha vitongoji na vituo vya miji ni muhimu kwa maendeleo ya kiuchumi na kijamii. Nchi zinabadilisha na kupanua mifumo yao ya reli ili kuhamasisha ukuaji unaoongezeka wa mijini na kuweka uchumi katika mwendo <unk> Hispania si ubaguzi. Ferrovial Agroman hujenga na kudumisha miundombinu ya reli ya sasa ambayo mamilioni ya watu na bidhaa hutiririka. Tangu 1927, Ferrovial Agroman imeweka zaidi ya kilomita 5,300 za reli nchini Hispania, ikiwa ni pamoja na kilomita 1,000 za reli ya kasi ndani na nje ya nchi. Idara ya Reli na Usafiri ya Ferrovial Agroman inahusika katika matengenezo na ujenzi wa mistari ya reli katika eneo lote la Uhispania. Kati ya miradi hii yote, kukamilika kwa hivi karibuni kwa sehemu mbili za reli ya kasi ya kasi ya kaskazini magharibi inayounganisha Madrid na Galicia: - Ujenzi wa handaki la Espinho - Mkusanyiko na matengenezo ya ujenzi wa reli kati ya Olmedo na Zamora. Kwa kiasi hiki cha miradi, Ferrovial Agroman alihitaji kurahisisha mchakato wa kupata data na kuthibitisha habari. Tatizo hilo lilitatuliwa kwa kutumia mfumo wa ramani ya rununu ambayo inachukua reli na mazingira yake yote kwa kasi na ufanisi ambao miradi mingi ya reli inahitaji <unk> Leica Pegasus: Mbili. Kushinda rail riddles Reli reli ni kusudi-kujengwa <unk> kila track ni maana ya kwa urahisi kuongoza treni maalum, kujengwa na vipimo vya juu zaidi, hivyo vipande vyote viwili vya puzzle fit neatly pamoja. Hakuna kitu kingine isipokuwa gari-moshi kinachoweza kuendesha au kusimama katika njia ya reli. Kwa hiyo, kuchunguza reli inahitaji kukusanya data nyingi sana kwa usahihi na viwango vya juu zaidi katika muda mfupi zaidi. Kwa kuongezea changamoto za kawaida za kupima reli, mistari ya reli nchini Uhispania ambayo Ferrovial Agroman inasimamia hufafanuliwa na mandhari ya milima na kazi nyingi za chini ya ardhi na maeneo yasiyoweza kufikiwa. Kwa urefu wa kilomita 8, handaki la Espinho ni moja ya kazi za chini ya ardhi zilizo na umbali mrefu zaidi wa njia. Mradi wa Northwest High Speed Corridor, ambao unaunganisha miji ya Uhispania ya Olmedo na Santiago de Compostela, una zaidi ya kilomita 400 za mkusanyiko wa reli, ambayo kilomita 100 zinalingana na sehemu ya Olmedo na Zamora. <unk> Hali ya kukamata mistari ya reli ni changamoto. "Ikiwa, kwa kuongezea, mradi huo ni mstari wa reli ambao uko katika huduma na nyakati ndogo za kazi, kasi ya ununuzi ni muhimu, ""alisema David Rodríguez Vega, mkuu wa geomatics na topography katika Ferrovial Agroman." Kuwa na mfumo ambao unashika data kwa njia ya kubadilika na haraka ni muhimu kwa kutatua matatizo ambayo hutokea katika mradi mpya. "Pegasus: 2 ni mfumo wa ramani ya rununu wa haraka na ufanisi zaidi, na Ferrovial Agroman anajua kuwa uwakilishi wa dijiti unaruhusu wataalamu kufanya maamuzi ya habari zaidi. """ Kwa ajili ya utekelezaji sahihi wa miradi ya reli, ni required kuwa na data ya digital ya kina ya mali zote ambazo ni sehemu ya miundombinu ya reli. Ili kuunda mifano sahihi ya 3D ambayo huunganisha mipango na hali halisi iliyoonyeshwa, wataalamu hutegemea Leica Pegasus: Mbili. Ili kuingilia chini iwezekanavyo katika mstari wa reli, Pegasus: Two imewekwa kwenye gari linalofaa kwa kuendesha barabara na mistari ya reli, ikitoa kubadilika kuondoka na kuchukua mstari. <unk>Kuwa na mfumo ambao hutoa kasi na ubora katika upatikanaji wa habari ni muhimu. Georeferenced pointi mawingu na picha overlaid kupatikana na mfumo huu wa ramani ya simu wamezidi matarajio na bila shaka itakuwa kutumika kwa miradi mpya, <unk> alisema Rodríguez Vega. "Kwa kutumia jukwaa la sensorer la rununu ambalo linashika data ya ""wingu la nukta"" na ""upimaji wa picha ya 360"" kutoka kwa sensorer za ziada na usahihi wa kiwango cha uchunguzi, lakini pia linajumuisha GPS na mfumo wa nafasi ya Inertial Measurement Unit (IMU), ubora wa habari umehakikishiwa." <unk>Lengo letu la mwisho ni digitize mistari ya reli kuwa na vipengele vyote ambayo ni sehemu ya miundombinu kutambuliwa geolocated, na geometrically maalum. Takwimu zote na mifano iliyotokezwa ni msingi wa miradi yote ya baadaye, <unk> alisema Rodríguez Vega. <unk>Hii ni bila shaka maendeleo makubwa kuelekea ulimwengu wa dijiti <unk> mwisho ambao wateja wetu wakuu wanadai. <unk> Zaidi ya yote, timu ya wataalamu walifikiria kasi na ubora wa habari kama vigezo kuu wakati wa kuchagua suluhisho la kukamata miradi yao ya reli. Kati ya mifumo ya ramani ya rununu inayopatikana kibiashara, Ferrovial Agroman ilichagua Pegasus 2 na programu yake maalum ya hesabu ya trajectory, Leica Sirail, kwa sababu ya sababu kadhaa ambazo zilifanya jukwaa la sensor ya rununu kujitokeza juu ya wengine: - Uwezo wa usafirishaji na urahisi - Uwezo wa usahihi na mifumo ya hali ya juu ya GPS na IMU - Uwezo wa kusanyiko na kuondoa mfumo katika gari, kuweka mfumo, na programu ya kudhibiti ambayo ni intuitive na rahisi kutumia. Zaidi ya miaka 90 ya uzoefu na miaka 55 ya shughuli ya kimataifa katika nchi 50 kuenea katika mabara matano, Ferrovial Agroman imekuwa kampuni ya kuongoza katika sekta ya miundombinu. Ferrovial Agroman huamini ufumbuzi wa Geosystems kwa miradi mikubwa ya miundombinu na kazi bora za chini ya ardhi, miradi mikubwa ya mkusanyiko, na matengenezo ya reli ambapo maelezo ni ya ukali sana. Kampuni hiyo kwa sasa inatumia aina mbalimbali za Geosystems programu ufumbuzi kutoka Leica GeoOffice, Infinity, GeoMOS na Cyclone, kwa CloudWorks Plugin kwa 3D Shapers.