As pontuações são marcas relativas 0–100 neste atlas. Para navegar, não como especificação de engenharia.
Ultima revisao Fontes e creditosCréditos de mídiaMetodologia
Respostas curtas
Qual autoridade ou corredor local importa para este tipo?
Comece pela lente local: homologação, licenças e hubs — não uma checklist global.
Is this a buying guide?
No. Tool-Lifes /vehicles is an educational atlas. It explains history, systems and culture without affiliate rankings.
Are the scores official?
No. The six scores are relative editorial 0–100 marks across the 48 types on this site.
Where do the photos come from?
Lead images resolve from Wikimedia Commons via Wikipedia titles on the English masters, with licences recorded on the credits page.
Why metric units?
Metric is the default. Regional notes (US customary, local brand culture) appear in culture and market chapters.
How is this different from a wiki article?
Each type gets seven fixed-depth chapters, comparable scores and cross-type labs — structured for browsing, not a single freeform page.
Em Bonde, propulsão, estrutura, controlo e segurança partilham o mesmo envelope operacional.
Os medidores resumem margem estrutural, manutenibilidade e fatores humanos em pontuação relativa.
Sistemas
Estrutura
Bonde: 100%-low-floor designs use small wheels or hub motors to keep aisle height at platform level.
Propulsão
Bonde: Pantograph/trolley pole picks 600–750 V DC; ground-level APS segments power in heritage zones.
Energia
Bonde: Magnetic track brakes and sand improve stop distance on wet grooved rail.
Controlo
Bonde: Transit signal priority and stop annunciators sync with mixed-traffic streets.
Interface
Bonde: Front modules absorb impacts with cars and pedestrians at urban speeds.
Segurança
Bonde: Supercapacitors or batteries bridge dead overhead sections and enable partial off-wire ops.
Medidores relativos
Pontos quentes
Bonde: Grooved rail wear
Bonde: Flange gap widens causing wheel climb and derail risk at switches.
Bonde: Trolley rope/pan wear
Bonde: Head wire notching drops contact force in curves.
Bonde: Point machine alignment
Bonde: Switch throw failures strand trams mid-intersection.
Bonde: Hub motor seals
Bonde: Water ingress on low-floor motors causes bearing failures.
Bonde: APS ground segments
Bonde: Misaligned ground shoes arc and trip ground-fault protection.
Materiais
Bonde: Grooved girder rail
Bonde: City rail profiles guide wheel flanges through tight street curves.
Bonde: Cu contact wire
Bonde: Overhead conductors sized for peak acceleration current.
Bonde: Composite front cap
Bonde: Energy-absorbing modules meet pedestrian impact standards.
Bonde: MnCu alloy wheels
Bonde: Resistant to shelling on frequent stop-start duty.
Keep exploring
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Composições que movem granéis e contêineres entre continentes.
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Trânsito elevado de viga única.
Geral 58 🚄Maglev
Trens que flutuam em campos magnéticos — velocidades de avião sem atrito de roda.
Geral 76 🚂Locomotiva a vapor
Cavalos de ferro a carvão e água que inventaram a era ferroviária.
Geral 42 🚈Veículo leve sobre trilhos
Entre elétrico e metro — via reservada e rua.
Geral 69 🚞Funicular
Carros puxados a cabo em encostas íngremes.
Geral 58 🚞Rack railway
Trains that bite a toothed rack on steep grades — mountain lines where adhesion alone cannot hold.
Geral 53