Grič Tunnel (roadway)

The Grič Tunnel is a four-lane tunnel in Lika region of Croatia, an integral part of the A1 motorway located between Otočac and Ličko Lešće interchanges.[1] The Grič Tunnel is located to the south of Plasina Tunnel. The tunnel is tolled within the A1 motorway closed toll collection system, and there are no separate toll plazas related to the tunnel use.

Grič Tunnel
A1 motorway

The tunnel consists of two tubes, excavated in 2003 and opened for traffic in 2004.[2] Length of the northbound tunnel tube is 1,214 metres (3,983 ft), while the southbound one is 1,231 metres (4,039 ft) long. The tunnel carriageways consist of two 3.5 metres (11 ft) wide driving lanes and two 0.35 metres (1.1 ft) wide marginal strips. 0.9 metres (3.0 ft) wide inspection sidewalks are present in both of the tunnel tubes.[3] Electronic equipment of the tunnel facilitates use of two UHF frequencies (HR1 102.3 MHz and HR2 97.5 MHz) and use of cell phones. Speed limit applied in the tunnel is 100 km/h. In 2006 the Grič Tunnel was declared to be the second safest tunnel in Europe by the EuroTAP survey run by FIA and the German motoring club ADAC.[4][5]

Traffic volume

Traffic is regularly counted and reported by Hrvatske autoceste, operator of the A1 motorway, and published by Hrvatske ceste.[6] Substantial variations between annual (AADT) and summer (ASDT) traffic volumes are attributed to the fact that the motorway carries substantial tourist traffic to the Dalmatian Adriatic resorts. The traffic count is performed using analysis of toll ticket sales.

Grič Tunnel traffic volume
Road Counting site AADT ASDT Notes
A1 4216 Otočac south 11,856 28,953 Between Otočac and Perušić interchanges.
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See also

References
  1. "Regulation on motorway markings, chainage, interchange/exit/rest area numbers and names". Narodne novine (in Croatian). May 6, 2003.
  2. "A1 motorway Grič Tunnel excavated". Croatian Radiotelevision (in Croatian). June 11, 2003. Archived from the original on March 5, 2016. Retrieved September 13, 2010.
  3. "Grič Tunnel - Zagreb–Split motorway" (in Croatian). Rijekaprojekt. Archived from the original on May 30, 2009. Retrieved September 13, 2010.
  4. Bojan Terglav (April 28, 2006). "Grič Tunnel is the second in Europe" (PDF). Vjesnik (in Croatian). Retrieved September 13, 2010.
  5. "Brinje Tunnel - the safest tunnel in Europe". Ezadar (in Croatian). January 22, 2008.
  6. "Traffic counting on the roadways of Croatia in 2009 - digest" (PDF). Hrvatske Ceste. May 1, 2010. Archived from the original (PDF) on July 21, 2011. Retrieved September 13, 2010.

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