Orbital Railway Line

{{Short description|Project for a new Rodalies de Catalunya commuter rail line (Renfe Operadora)}}

{{Infobox rail line

| name = Barcelona orbital line

| other_name = Fourth railway bypass

| native_name = {{lang|ca|línia orbital}}

| color = FF7F00

| type = commuter rail

| status = In development

| locale = Municipality:26
Alt Penedès, Baix Llobregat, Garraf, Maresme, Vallès Occidental and Oriental

| start = Vilanova i la Geltrú

| end = Mataró

| stations = 39
(23 new stations)

| open =

| event1label = First service

| event1 = 2016

| owner = Authority: ATM Barcelona

| operator =

| linelength = {{convert|120|km|mi}}
({{convert|68|km|mi}} new)

| gauge = {{RailGauge|1668mm}}

| speed_km/h = 60

| map = {{Rodalies orbital Line}}

| map_state = collapsed

}}

The Barcelona orbital line ({{langx|ca|línia orbital}}) is a railway project forming part of both the Pla d'infraestructures de Catalunya (PITC),Catalonia infrastructure plan a long-term development plan due for completion in 2026, and the Pla de transport de viatgers de Catalunya (PTVC),Catalonia passenger transport plan a short-term plan due for completion in 2012. In following perimeter routes the orbital line and another railway project, the Eix Transversal Ferroviari de Catalunya,Catalan transversal railway line are the first railway schemes to depart from the radial system developed so far in the Barcelona area.LA VANGUARDIA. Especials la Vanguardia: Grandes obras de progreso para Cataluña, 2008.

Also known as the Quart cinturó ferroviari,Fourth railway bypass the orbital line will connect Rodalies Barcelona services between Vilanova i la Geltrú and Mataró via a {{convert|119|km|mi}} line passing through Granollers, Sabadell, Terrassa, Martorell and Vilafranca del Penedès, but avoiding the actual city of Barcelona. Some sections will make use of existing track belonging to Administrador de Infraestructuras Ferroviarias (Adif) and operated by Renfe Operadora, whilst 68 km of track - of which {{convert|46|km|mi}} in tunnels - and 23 new stations will be constructed.

{{wide image|Línia orbital.svg|500px|Orbital line within Catalonia.}}