Question: The western boundary of Molendinar follows a national highway that is how long?

full_context: Document 1: Eastern Main Road: The Eastern Main Road is a major road in Trinidad and Tobago running from Port of Spain in the west to Sangre Grande in the east. The towns of the East-West Corridor are strung along its route. Until the construction of the Churchill-Roosevelt Highway (in 1941) and the Beetham Highway (in 1955-56) the Eastern Main Road was the main route of travel between Port of Spain and Arima. Along much of its length, the Eastern Main Road is notoriously congested.
Document 2: Mungindi: Mungindi is a town and locality on the border of New South Wales (NSW) and Queensland, Australia. The town is within Moree Plains Shire in New South Wales and within the Shire of Balonne in Queensland. Within Queensland, the locality is split between the Shire of Balonne (the western part) and the Goondiwindi Region (eastern part). It possesses a New South Wales postcode. Mungindi sits on the Carnarvon Highway and straddles the Barwon River which is the border between New South Wales and Queensland. At the 2011 census , Mungindi had a population of 738 on the New South Wales side. The population on the Queensland side is now included in Thallon, which had a population, including the surrounding area, of 382.
Document 3: Sunshine Coast, Queensland: Sunshine Coast is a peri-urban area and the third most populated area in the Australian state of Queensland. Located 100 km north of the state capital Brisbane in South East Queensland on the Pacific Ocean coastline, its urban area spans approximately 60 km of coastline and hinterland from Pelican Waters to Tewantin. The estimated urban population of Sunshine Coast as at June 2015 was 302,122, making it the 9th most populous in the country.
Document 4: Gold Coast hinterland: The Gold Coast hinterland is an area of South East Queensland, Australia that comprises the Tweed Range, Nimmel Range, Tamborine Mountain, Numinbah Valley, eastern parts of the McPherson Range and western parts of suburban Gold Coast, such as Mudgeeraba. This undefined unit of area is known for its tourist attractions including resorts, rainforest, lookouts, national parks, its diversity of fauna and flora and as a green backdrop to the coastal strip. It overlaps part of the Scenic Rim and is part of both the City of Gold Coast and Scenic Rim Region and includes Springbrook, Binna Burra and O'Reilly's Guesthouse.
Document 5: Upper Coomera, Queensland: Upper Coomera is a suburb on the Gold Coast in Queensland, Australia. Upper Coomera and Coomera have long been the main centre of urban development on the Gold Coast and are considered to be, along with Southport and Robina, one of the Gold Coast's three urban centres. Upper Coomera is a heavily suburbanised suburb consisting of many large residential developments and commercial centres. Despite already being heavily developed and having an extraordinarily large population, Upper Coomera is predicted by both the Queensland Government and Gold Coast City Council to grow and develop at an exponential rate well into the next decade. Upper Coomera is a popular place of residence for dual-city commuters as it is placed roughly halfway between the central commercial districts of Southport and Beenleigh and within reasonable travelling distance to Brisbane CBD.
Document 6: Coastal Passageway: The Coastal Passageway is a high-speed rail corridor running along the eastern coast of China, stretching from Dalian in the north to Fangchenggang in the south and passing through the cities of Qinhuangdao, Tianjin, Dongying, Weifang, Qingdao, Lianyungang, Yancheng, Nantong, Shanghai, Ningbo. Fuzhou, Xiamen, Shenzhen, and Zhanjiang. The Weifang-Qingdao stretch splits into two, one directly connecting Weifang to Qingdao, the other connecting Weifang to Qingdao through Yantai. Announced in 2016 as part of the national "Eight Vertical and Eight Horizontal" high-speed railway network, the line will comprise of a mixture of high-speed railway lines, upgraded conventional rail lines and intercity railways.
Document 7: Highways in Australia: Highways in Australia are generally high capacity roads managed by state and territory government agencies, though Australia's federal government contributes funding for important links between capital cities and major regional centres. Prior to European settlement, the earliest needs for trade and travel were met by narrow bush tracks, used by tribes of Indigenous Australians. The formal construction of roads began in 1788, after the founding of the colony of New South Wales, and a network of three major roads across the colony emerged by the 1820s. Similar road networks were established in the other colonies of Australia. Road construction programs in the early 19th century were generally underfunded, as they were dependent on government budgets, loans, and tolls; while there was a huge increase in road usage, due to the Australian gold rushes. Local government authorities, often known as Road Boards, were therefore established to be primarily responsible for funding and undertaking road construction and maintenance. The early 1900s saw both the increasingly widespread use of motorised transportation, and the creation of state road authorities in each state, between 1913 and 1926. These authorities managed each state's road network, with the main arterial roads controlled and maintained by the state, and other roads remaining the responsibility of local governments. The federal government became involved in road funding in the 1920s, distributing funding to the states. The depression of the 1930s slowed the funding and development of the major road network until the onset on World War II. Supply roads leading to the north of the country were considered vital, resulting in the construction of Barkly, Stuart, and Eyre Highways.
Document 8: Molendinar, Queensland: Molendinar also known as Silver Bridle is a small, mainly industrial suburb on the Gold Coast in Queensland, Australia. At the 2011 Census, Molendinar had a population of 6,213. The western boundary of the suburb follows the Pacific Highway.
Document 9: Gold Coast, Queensland: The Gold Coast is a coastal area in the Australian state of Queensland, approximately 66 km south-southeast of the state capital Brisbane and immediately north of the border with New South Wales. With a census-estimated 2016 population of 638,090, The Gold Coast is the sixth-largest city in Australia, making it the largest non-capital city, and the second-largest city in Queensland.
Document 10: Western Highway (Victoria): The Western Highway is the Victorian part of the principal route linking the Australian cities of Melbourne and Adelaide with a length of approximately 314 km of single carriageway then 156 km of dual carriageway known as the Western Freeway. It is a part of the National Highway network and designated as National Highway A8 and M8. The western end continues in South Australia as the Dukes Highway, the next section of the Melbourne–Adelaide National Highway. The Western Freeway joins Melbourne's freeway network via the Western Ring Road, in the middle western suburbs of Melbourne.
Document 11: Pacific Highway (Australia): The Pacific Highway is a 790 km national highway and major transport route along the central east coast of Australia, with the majority of it being part of Australia's national route 1.
Document 12: Bridge Road, Melbourne: Bridge Road is a major shopping strip in Melbourne, Australia. It is best known for its abundance of clothing factory outlets, which makes it a popular tourist attraction. There are also many stores featuring up-and-coming local fashion designers, cafes and other restaurants.
Document 13: Japan National Route 1: National Route 1 is a major highway on the island of Honshū in Japan. It connects Chūō, Tokyo in the Kantō region with the city of Osaka, Osaka Prefecture in the Kansai region, passing through the Chūbu region en route. It follows the old Tōkaidō westward from Tokyo to Kyoto, and the old Kyo Kaidō from there to Osaka. Between Tokyo and Aichi Prefecture it parallels the Tomei Expressway; from there to Mie Prefecture, the Higashimeihan Expressway, and from Shiga Prefecture to Osaka, the Meishin Expressway. Its total length is 565.4 km . At its eastern terminus in Nihonbashi, Chūō, Tokyo, it meets National Routes 4, 6, 14, 15, 17, and 20. At its western terminus in Umeda, Kita-ku, Osaka, it links with Routes 2, 25, 26 and other highways.
Document 14: Spencer Highway: The Spencer Highway is a highway along the east coast of Spencer Gulf in South Australia. It starts at the Augusta Highway and runs south through Port Pirie to Minlaton. The highway is also designated as State route B89 except between Alford and Moonta. In this section, the Spencer Highway goes through the coastal town of Wallaroo, but route B89 goes through the regional business centre of Kadina.
Document 15: West Moreton: West Moreton is a region of the Australian state of Queensland, consisting of the entire rural western portion of South East Queensland. It sits inland from both the Brisbane metropolitan area and the Gold Coast and to the east of the Darling Downs. Much of the region lies in the Great Dividing Range. The name appears in the names of many community organisations and is used by the Australian Bureau of Statistics, although is not widely used otherwise due to the prevalence of South East Queensland in planning and other documents.
ground_truth: 790 km