Autovía B-10

B-10 motorway
Ronda Litoral
Route information
Length	20 km (12 mi)
Existed	May 5, 1981–present
History	Constructed 1972 – 1987
Major junctions
From	Nus de la Trinitat 41.4489°N 2.2003°E / 41.4489; 2.2003 (B-10 (northern end)
To	Nus del Llobregat 41.3434°N 2.0933°E / 41.3434; 2.0933 (B-10 (southern end))
Location
Country	Spain
Highway system
Primary highways in Catalonia

The B-10, also known as Ronda Litoral or Cinturó Litoral, is a 20-kilometre (12.43 mi) ring motorway partially encircling the city of Barcelona in Catalonia, Spain by the eastern side. It starts at Nus de la Trinitat, a major highway interchange in northern Barcelona, and runs along the entire length of the Besòs River and Barcelona's coastline south to Nus del Llobregat near Zona Franca, where it becomes the Autovía A-2. It is linked to the B-20 or Ronda de Dalt, which encircles Barcelona by the western side, jointly forming a beltway that surrounds the city commonly referred to as Les Rondes.

The motorway becomes and integrated urban highway as it passes through both central and northern Barcelona, so all its signaling becomes green, unlike the southern section of B-10 where the signaling remains blue as if it was a typical interurban controlled-access highway, which is considered part of European route E90. It features a mix of below-grade, at-grade and underground sections, mainly as it passes through central Barcelona, where it is also only two lanes in each direction while the other sections are mostly three lanes.

Although the speed limit is 80 km/h (50 mph) along the urban-highway section and 100 km/h (62 mph) along the interurban-highway section, the car's average top speed is lower due to constant flow of traffic with more than 170,000 vehicles per day, and even average top speed may reach 20 km/h (12 mph) during rush hour. Additional restrictions for heavy goods vehicles are applied on the section situated between Montjuïc–Zona Franca logistics area and Rambla de Prim interchange, whereby weight limits is posted 12 tonnes and all vehicles over 12 meters long are banned from that section.

Exit list

Municipality	km	Mile	Exit	Name	Destinations	Notes
Barcelona	0.0	0.0	Nus de la Trinitat
			↓ Urban highway section; green signaling ↓
	0.4– 1.0	0.2– 0.6	30	Bon Pastor	Santa Coloma de Gramenet, Potosí Street
Sant Adrià de Besòs	2.2	1.3	29	Verneda	Sant Adrià de Besòs, Guipúscoa Street	Northbound exit is via exit 26 (km 3.8)
	2.7	1.6	28	Gran Via	C-31 south – Plaça de les Glòries Catalanes	No northbound exit
	3.0	1.8	27	Badalona	C-31 north – Badalona, Mataró	Indirect access to Carretera Nacional N-II
	3.8	2.3	26	Sant Adrià	Cristòfol de Moura Street, La Catalana Neighbourhood	Northbound exit only; southbound exit is via exit 29
	3.9	2.4	26	Sant Adrià	La Mina Neighbourhood, La Catalana Neighbourhood, Llull Street	Southbound exit only; northbound exit is via exit 25
	4.3	2.6	24	Diagonal Mar	Rambla de Prim, Passeig de Garcia Fària, Sant Adrià de Besòs	Southbound exit only; northbound exit is via exit 24 named "Besòs"
	4.7	2.9	25	Port Fòrum Sant Adrià	Eduard Maristany Avenue	Northbound exit only; southbound exit is via exit 26 (km 3.9)
Barcelona	6.0	3.7	24	Besòs	Rambla de Prim, Diagonal Mar, Port Fòrum Sant Adrià	Northbound exit; southbound exit is via exit 24 named "Diagonal Mar"
	7.4	4.5	23	Poblenou	Marina, Port Olímpic, Parc del Mar	Northbound exit is via exit 22 (km 9.5)
	7.9	4.9	23	Poblenou	Bac de Roda Street, Avinguda Litoral	No southbound exit
	9.0	5.5	22	Barceloneta	Pla de Palau, Via Laietana, Port Vell
	9.5	5.9	22	Barceloneta	Marina, Port Olímpic, Hospital del Mar, Parc del Mar	Southbound exit is via exit 23 (km 7.4)
	10.7	5.9	21	Ciutat Vella	Paral·lel Street, Ciutat Vella, Port Vell, Estació Marítima Balears	Northbound exit via the other exit numbered 21
	11.0	5.9	20	Port	Port – Mercaderies
	11.6	5.9	21	Ciutat Vella	Paral·lel Street, La Rambla, Montjuïc, Port Vell
			↓ Interurban highway section; blue signaling ↓
	13.4	5.9	19	Montjuïc	Passeig de Cantunis, Montjuïc Cemetery
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

External links

• Trànsit B-10 on Twitter. Real-time traffic information about B-10 by the Catalan Traffic Agency.
• Real-time images from traffic cameras installed along Ronda Litoral: Zona Franca · Moll de la Fusta · Badajoz Street · Bon Pastor Neighbourhood