Line 8 (CPTM)

{{Short description|Commuter rail line in São Paulo}}

{{Infobox rail line

| box_width = 355px

| name = Line 8 (Diamond)

| color = {{Rail color|CPTM|Line 8}}

| logo = Logo completo viamobilidade.svg

| logo_width = 250px

| logo_alt = Logo completo viamobilidade.svg

| image = Diag. Linha 8-Diamante.svg

| image_width = 350px

| image_alt =

| caption =

| type = Commuter rail

| system = São Paulo Metropolitan Trains

| status = Operational

| locale = Greater São Paulo, Brazil

| start = Amador Bueno

| end = Júlio Prestes

| connectinglines = {{Plainlist|

• Current:
• {{rint|saopaulo|metro}} {{rint|saopaulo|3}}
• {{rint|saopaulo|cptm}} {{rint|saopaulo|7}}{{rint|saopaulo|10}} {{rint|saopaulo|11}}
• File:Viamobilidade ícone.svg {{rint|saopaulo|9}}
• Planned:
• {{rint|saopaulo|metro}} {{rint|saopaulo|20}}
• File:Linha 6 - Linha Universidade.png {{rint|saopaulo|6}}

}}

| stations = 23 in operation
1 in project

| routes =

| daily_ridership =

| ridership2 =

| open = {{start date and age|1875|7|10|df=y}}

| close =

| owner = Government of the State of São Paulo

| operator = File:Viamobilidade ícone.svg ViaMobilidade (CCR)

| character = At-grade

| depot = {{Plainlist|

• Lapa rail yard
• Presidente Altino rail yard
• Santa Terezinha rail yard

}}

| stock = {{Plainlist|

• 24 Francorail/CCTU/MTE/Cobrasma Series 5400 (6 trains, operational extension)
• 152 CAF Series 7000 (19 trains)
• 64 CAF Series 7500 (8 trains)
• 224 Alstom Series 8900 (32 trains)

}}

| linelength_km = 42

| tracklength =

| tracks =

| gauge = {{Track gauge|1600 mm|lk=on}}{{cite web|url=http://www.nycsubway.org/wiki/Sao_Paulo_Metro |title=São Paulo Metro |accessdate=2014-02-02 |last=Ferreira |first=Robert |author2=Tharcisiu Alves. |date=January 2012 |work=www.nycsubway.org |archiveurl=https://archive.today/20140202010909/http://www.nycsubway.org/wiki/Sao_Paulo_Metro |archivedate=2014-02-02 |quote=On Lines 1, 2 and 3, the track gauge is a non standard 1600 mm, the third rail is 750 V DC and under running. For Lines 4 and 5, the track gauge is 1435 mm and they use overhead pantograph, precluding any connection to the rest of the system, plus the 4 and 5 lines can't connect because the trains on the 4 line use drive-less technology while trains on 5 line are OPTO. Lines 7, 8, 9, 10, 11 and 12 (operated by CPTM) are all 1600mm and use overhead pantograph. |url-status=dead }}

| old_gauge =

| load_gauge =

| minradius =

| racksystem =

| routenumber =

| signalling = Automatic block signaling

| electrification = 3,000 V DC catenary

| speed_km/h = 80

| elevation =

| website =

| map = {{Line 8 (CPTM)|inline=1}}

| map_state = show

}}

Line 8 (Diamond) ({{langx|pt|Linha 8–Diamante}}), formerly Line B (Gray), is one of the thirteen lines that make up the São Paulo Metro Rail Transport Network in Brazil and one of the three lines operated by ViaMobilidade.[http://www.cptm.sp.gov.br/E_REDECPTM/REDE/esquema_estacao.asp?menu=8 Line 8 (CPTM) Website (Portuguese)] {{webarchive|url=https://web.archive.org/web/20100906100155/http://www.cptm.sp.gov.br/E_REDECPTM/REDE/esquema_estacao.asp?menu=8|date=2010-09-06}}

The line was previously operated by Fepasa, and subsequently by CPTM. Since 27 January 2022, ViaMobilidade has been operating it under a contract for 30 years, along with Line 9-Emerald.{{cite web|url=https://g1.globo.com/sp/sao-paulo/noticia/2021/04/20/consorcio-via-mobilidade-vence-concessao-das-linhas-8-diamante-e-9-esmeralda-da-cptm-em-sp.ghtml|title=Pela 1ª vez, governo de SP concede linhas de trens da CPTM à iniciativa privada; CCR assume linhas 8 e 9 por 30 anos|website=G1|language=pt|date=20 April 2021|accessdate=20 April 2021}}{{cite web|url=https://www.metrocptm.com.br/viamobilidade-ja-esta-implantando-sua-identidade-visual-nos-trens-da-cptm/|title=ViaMobilidade já está implantando sua identidade visual nos trens da CPTM|website=Metrô CPTM|language=pt|author=Jean Carlos|date=14 January 2022|accessdate=22 January 2022}}