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Titirangi is a suburb of West Auckland in the Waitākere Ranges local board area of the city of Auckland in northern New Zealand. It is an affluent, residential suburb located 13 km (8.1 mi) to the southwest of the Auckland city centre, at the southern end of the Waitākere Ranges. [3]
The deviation comprises ten tunnels of varying length from 70 to 825 metres (77 to 902 yd) that carry the double-track 1,435 mm (4 ft 8 + 1 ⁄ 2 in) standard gauge Main Western line between Newnes Junction and Lithgow Zig Zag stations. The work also included the excavation of the deepest cutting of 61 metres (200 ft) on the New South Wales ...
Zig zags suffer from a number of limitations: The length of trains is limited to what will fit on the shortest stub track in the zig zag. For this reason, the Lithgow Zig Zag's stubs were extended at great expense in 1908. [5] Even then, delays were such that the zig zag had eventually to be bypassed by a new route, opened two years later.
The 33 ha Titirangi Reserve is a tourist attraction; the hill has a Cook monument, a pōhutukawa tree planted by Diana, Princess of Wales, the James Cook Observatory, a fitness course, a park, and four lookouts over Gisborne city and Poverty Bay. Other features include a World War II gun emplacement, a summit track and nature trails. [2]
The line originally ascended the eastern and descended the western sides of the Blue Mountains via a series of zig-zag track sections. The eastern zig zag was by passed by a tunnel in 1892 and the western zig zag (currently a tourist railway ) was bypassed in 1910 with the Ten Tunnels Deviation .
In mathematics, a chaotic map is a map (an evolution function) that exhibits some sort of chaotic behavior. Maps may be parameterized by a discrete-time or a continuous-time parameter. Discrete maps usually take the form of iterated functions. Chaotic maps often occur in the study of dynamical systems.
PeruRail's routes are divided into two sections. The line between Cusco and Machu Picchu - Ferrocarril Santa Ana - is a 3 ft (914 mm) narrow gauge line, which boasts a series of five switchbacks called locally 'El Zig-Zag', which enable the train to climb up the steep incline out of Cusco, before it can begin its descent to the Sacred Valley of the Incas and then continue down to Machu Picchu.
The Zig Zag climbing the Crown Range road near Arrowtown. The Crown Range is a mountain range that lies to the east of the Wakatipu Basin in Otago, New Zealand. [1] It is noted for two features, the Cardrona Alpine Resort, on the slopes of the 1900 metre Mount Cardrona, and a highway, known as the Crown Range Road (formerly State Highway 89), which winds steeply between Arrow Junction, just ...