Mercedes-Benz has been making buses since 1895 in Mannheim in Germany. Since 1995, the brand of Mercedes-Benz buses and coaches is under the umbrella of EvoBus GmbH, belonging 100% to the Daimler AG; the world's first motorised bus was built in Germany by Karl Benz in 1895, some years before Gottlieb Daimler started to build and sell buses in Germany as well. By 1898 both Karl Benz and Gottlieb Daimler rivals, were exporting their buses to Wales and England. Soon Daimler products were sold in the British Empire in a partnership with the British company Milnes. Milnes-Daimler developed a double-decker in 1902 and provided a bus for the first motorised bus service in the United Kingdom the following year. Though the company met success in selling buses throughout the British Empire, the partnership between Daimler and Milnes had to be undone due to the First World War. Due to economic hardships in the early 1900s, Daimler Motoren Gesellschaft and Benz & Cie. merged into one company in 1926, two years after both companies signed an agreement of mutual interest.
Thus, Daimler-Benz AG was formed. In the next year, the company presented its first combined bus range. By that time emphasis was given to diesel engines for commercial vehicles. In 1951 Mercedes-Benz unveiled its first bus designed for bus operation - the O6600 H; this 11-metre-long vehicle was equipped with a six-cylinder, transverse-mounted rear engine delivering 145 hp, a lower frame than its predecessors, an electric gearshift system. In 1954 Mercedes-Benz unveiled its first semi-integral bus - the O321 H; the semi-integral design meant a reduction in improvements in stability and body resistance. The O321 H was the first to feature coil springs in the front-axle suspension; this 9.2-metre-long vehicle featured a rear-mounted engine. The first version was available with an output of 110 hp, a optional 126-hp version was made available. More than 30,000 units of the O321 H complete bus and its platform were sold around the world, a mark which places it as the best-selling bus of its time and, until today, one of the most successful models by Mercedes-Benz.
In the year 1951, technicians from Daimler Benz, accompanied by Brazilian specialists, carried out studies to analyse the viability of producing vehicles in Brazil. Two years on 7 October 1953, Mercedes-Benz do Brasil was founded, having as its first president Alfred Jurzykowski. A plant was built in São Bernardo do Campo in São Paulo State. On 28 September 1956 the plant was inaugurated in the presence of the President of Brazil, Juscelino Kubitschek; this date marks the birth of the Brazilian vehicle industry. Until 1958 only lorries were produced in the Brazilian plant, local body builders used lorry chassis to make buses. In 1958, the integral bus Mercedes-Benz O321 H started to the local production, supplying the local market as well as the market of other South American countries. For instance, 550 units of Brazilian-made O321 integral buses were exported to Argentina in 1961, other 300 units were exported to Venezuela in 1965. In 1963, a front-engine bus chassis was unveiled, based on the LP 321 lorry.
New versions of this chassis as well as new versions of the O 321 integral bus were presented the following year. The first integral bus tailored to the Brazilian market was the O 326, a rear-engine coach unveiled in 1966, it featured the turbo-charged OM 326 engine delivering up to 200 hp. One year a new front-engine bus chassis was unveiled – the LPO 344 based on a lorry chassis. In 1969 a new rural- and urban-service bus was presented by Mercedes-Benz do Brasil. Designated O 352, this integral bus was equipped with a direct-injection diesel engine. Two new front-engine chassis were presented that same year – the LPO 1113 and the LPO 1520. During the 1970s the plant in São Bernardo do Campo was being expanded to meet with the increasing demand for the production of commercial vehicles. By the end of that decade, Mercedes-Benz had produced more than 500,000 commercial vehicles in the Brazilian plant, about 4,000 of which were integral buses. In 1970, the rear-engine OH 1313 and the front-engine OF 1313 bus chassis were unveiled.
One year a new integral coach was unveiled - the O 362 - featuring a larger luggage compartment than its predecessor, the O 321. Yet another integral bus was presented by Mercedes-Benz do Brasil - the O 355 - in 1974; the OH 1517 rear-engine chassis was presented that year. One year after the first three-axle bus was built in Brazil made its debut in 1977, the new O 364 integral bus was presented by Mercedes-Benz do Brasil in two versions - one with a 130-hp engine, the other with a 170-hp engine. In 1978 the production of the O 362 was discontinued, after more than 35,100 units were produced in Brazil. Since the demand for buses was growing by that time, a new plant was inaugurated in Campinas, dedicated only for the production of buses; this plant was considered the biggest and most modern plant dedicated for the production of buses in the Western World. Meanwhile, the plant in São Bernardo do. In 1984 two new integral bus range were presented by Mercedes-Benz do Brasil. One of them was available in two - and three-axle versions.
It was the first coach range produced by Mercedes-Benz do Brasil fitted with air suspension as standard. The other wa
Compressed natural gas
Compressed natural gas is a fuel which can be used in place of gasoline, diesel fuel and propane/LPG. CNG combustion produces fewer undesirable gases than the aforementioned fuels. In comparison to other fuels, natural gas poses less of a threat in the event of a spill, because it is lighter than air and disperses when released. Biomethane – cleaned-up biogas from anaerobic digestion or landfills – can be used. CNG is made by compressing natural gas, to less than 1 percent of the volume it occupies at standard atmospheric pressure, it is stored and distributed in hard containers at a pressure of 20–25 MPa in cylindrical or spherical shapes. CNG is used in traditional gasoline/internal combustion engine automobiles that have been modified or in vehicles which were manufactured for CNG use, either alone, with a segregated gasoline system to extend range or in conjunction with another fuel such as diesel. Natural gas vehicles are used in Iran Pakistan, the Asia-Pacific region, Indian capital of Delhi, other large cities like Ahmedabad, Pune, Kolkata—as well as cities such as Lucknow, Varanasi, etc.
Its use is increasing in South America and North America because of rising gasoline prices. In response to high fuel prices and environmental concerns, CNG is starting to be used in tuk-tuks and pickup trucks and school buses, trains; the cost and placement of fuel storage tanks is the major barrier to wider/quicker adoption of CNG as a fuel. It is why municipal government, public transportation vehicles were the most visible early adopters of it, as they can more amortize the money invested in the new fuel. In spite of these circumstances, the number of vehicles in the world using CNG has grown steadily. Now, as a result of the industry's steady growth, the cost of such fuel storage tanks has been brought down to a much more acceptable level. For the CNG Type 1 and Type 2 tanks, many countries are able to make reliable and cost effective tanks for conversion need. CNG's volumetric energy density is estimated to be 42 percent that of liquefied natural gas, 25 percent that of diesel fuel. Worldwide, there were 14.8 million natural gas vehicles by 2011, led by Iran with 2.86 million, Argentina and India.
With the Asia-Pacific region leading with 5.7 million NGVs, followed by Latin America with four million vehicles. Several manufacturers sell bi-fuel cars. In 2006, Fiat introduced the Siena Tetrafuel in the Brazilian market, equipped with a 1.4L FIRE engine that runs on E100, E25, Ethanol and CNG. Any existing gasoline vehicle can be converted to a dual-fuel vehicle. Authorized shops can do the retrofitting and involves installing a CNG cylinder, plumbing, a CNG injection system and the electronics; the cost of installing a CNG conversion kit can reach $8,000 on passenger cars and light trucks and is reserved for vehicles that travel many miles each year. CNG costs emits up to 90 % fewer emissions than gasoline. CNG locomotives are operated by several railroads; the Napa Valley Wine Train retrofit a diesel locomotive to run on compressed natural gas before 2002. This converted locomotive was upgraded to utilize a computer controlled fuel injection system in May 2008, is now the Napa Valley Wine Train's primary locomotive.
Ferrocarril Central Andino in Peru, has run a CNG locomotive on a freight line since 2005. CNG locomotives are diesel locomotives that have been converted to use compressed natural gas generators instead of diesel generators to generate the electricity that drives the traction motors; some CNG locomotives are able to fire their cylinders only when there is a demand for power, theoretically, gives them a higher fuel efficiency than conventional diesel engines. CNG is cheaper than petrol or diesel. Natural gas vehicle have lower maintenance costs than other hydrocarbon-fuel-powered vehicles. CNG fuel systems are sealed. Increased life of lubricating oils, as CNG does not dilute the crankcase oil. Being a gaseous fuel, CNG mixes and evenly in air. CNG is less to ignite on hot surfaces, since it has a high auto-ignition temperature, a narrow range of flammability. CNG-powered vehicles are considered to be safer than gasoline-powered vehicles. Less pollution and more efficiency: CNG emits less pollution directly than gasoline or oil when combusted.
For example, an engine running on petrol for 100 km emits 22 kilograms of CO2, while covering the same distance on CNG emits only 16.3 kilograms of CO2. Due to lower carbon dioxide emissions, switching to CNG can help mitigate greenhouse gas emissions. However, natural gas leaks represent an increase in greenhouse gas emissions; the ability of CNG to reduce greenhouse gas emissions over the entire fuel lifecycle will depend on the source of the natural gas and the fuel it is replacing. The lifecycle greenhouse gas emissions for CNG compressed from California's pipeline natural gas is given a value of 67.70 grams of CO2-equivalent per megajoule by CARB (the California Air Resource
Volgren is an Australian bus bodybuilder. Volgren was formed in 1977 by Melbourne bus operator Grenda Corporation in Victoria; because Grenda held the Volvo Buses dealership in Victoria, only chassis from this manufacturer were bodied until 1989 when the dealership was relinquished. The name is a portmanteau of the two original investors and Grenda. In 1981 a plant was established in Acacia Ridge, Queensland by Grenda Corporation, Hornibrook Bus Lines's Geoff Mountjoy, Greyhound Northern and Stateliner, it bodied some Volvo B59 and B10Rs for Hornibrook Bus Lines and Surfside Buslines before concentrating on Twin and Double Deck Volvo B10M coaches. This closed in the late 1980s. In December 2011, Brazilian bus manufacturer Marcopolo acquired a 75% shareholding. In April 2014 this was increased to 100%. Current factories: Dandenong, Victoria completed Volgren's first bus in October 1979 Malaga, Western Australia opened in April 1999 to fulfill a contract to body Mercedes-Benz O405NHs for Transperth Eagle Farm, Queensland opened in February 2010Former factories: Tomago, New South Wales opened in March 2010, closed July 2012 Volgren have bodied a number of buses for Asian operators: Hong Kong Kowloon Motor Bus operate 21 Volvo Super Olympians, 17 MAN 24.310 HOCLNR-NLs and 1 Volvo B9TL Citybus operate 1 MAN 24.350 HOCLNR-NL and 1 Scania K94UB Singapore SBS Transit operates 50 Volvo Super Olympians and 12 Volvo B10BLE CNGs.
It operated a diesel powered Volvo B10BLE, a Scania L94UB, a Volvo B5RLEH. SMRT Buses operates 20 Mercedes Benz O405G buses, it operated Mercedes-Benz O405s, Hino HS3KRKKs and HS3KRKA, 2 Dennis Lances Malaysia, a substantial number of buses were fitted with the Volgren bodywork as well. Examples can be found in the capital Kuala Lumpur, Shah Alam and Johor Bahru, state capital of Johor. Media related to Volgren at Wikimedia Commons Bus Australia gallery
Horsepower is a unit of measurement of power, or the rate at which work is done. There are many different types of horsepower. Two common definitions being used today are the mechanical horsepower, about 745.7 watts, the metric horsepower, 735.5 watts. The term was adopted in the late 18th century by Scottish engineer James Watt to compare the output of steam engines with the power of draft horses, it was expanded to include the output power of other types of piston engines, as well as turbines, electric motors and other machinery. The definition of the unit varied among geographical regions. Most countries now use the SI unit watt for measurement of power. With the implementation of the EU Directive 80/181/EEC on January 1, 2010, the use of horsepower in the EU is permitted only as a supplementary unit; the development of the steam engine provided a reason to compare the output of horses with that of the engines that could replace them. In 1702, Thomas Savery wrote in The Miner's Friend: So that an engine which will raise as much water as two horses, working together at one time in such a work, can do, for which there must be kept ten or twelve horses for doing the same.
I say, such an engine may be made large enough to do the work required in employing eight, fifteen, or twenty horses to be maintained and kept for doing such a work… The idea was used by James Watt to help market his improved steam engine. He had agreed to take royalties of one third of the savings in coal from the older Newcomen steam engines; this royalty scheme did not work with customers who did not have existing steam engines but used horses instead. Watt determined; the wheel was 12 feet in radius. Watt judged. So: P = W t = F d t = 180 l b f × 2.4 × 2 π × 12 f t 1 m i n = 32, 572 f t ⋅ l b f m i n. Watt defined and calculated the horsepower as 32,572 ft⋅lbf/min, rounded to an 33,000 ft⋅lbf/min. Watt determined that a pony could lift an average 220 lbf 100 ft per minute over a four-hour working shift. Watt judged a horse was 50% more powerful than a pony and thus arrived at the 33,000 ft⋅lbf/min figure. Engineering in History recounts that John Smeaton estimated that a horse could produce 22,916 foot-pounds per minute.
John Desaguliers had suggested 44,000 foot-pounds per minute and Tredgold 27,500 foot-pounds per minute. "Watt found by experiment in 1782 that a'brewery horse' could produce 32,400 foot-pounds per minute." James Watt and Matthew Boulton standardized that figure at 33,000 foot-pounds per minute the next year. A common legend states that the unit was created when one of Watt's first customers, a brewer demanded an engine that would match a horse, chose the strongest horse he had and driving it to the limit. Watt, while aware of the trick, accepted the challenge and built a machine, even stronger than the figure achieved by the brewer, it was the output of that machine which became the horsepower. In 1993, R. D. Stevenson and R. J. Wassersug published correspondence in Nature summarizing measurements and calculations of peak and sustained work rates of a horse. Citing measurements made at the 1926 Iowa State Fair, they reported that the peak power over a few seconds has been measured to be as high as 14.9 hp and observed that for sustained activity, a work rate of about 1 hp per horse is consistent with agricultural advice from both the 19th and 20th centuries and consistent with a work rate of about 4 times the basal rate expended by other vertebrates for sustained activity.
When considering human-powered equipment, a healthy human can produce about 1.2 hp and sustain about 0.1 hp indefinitely. The Jamaican sprinter Usain Bolt produced a maximum of 3.5 hp 0.89 seconds into his 9.58 second 100-metre dash world record in 2009. When torque T is in pound-foot units, rotational speed is in rpm and power is required in horsepower: P / hp = T / × N / rpm 5252 The constant 5252 is the rounded value of /; when torque T is in inch pounds: P
An engine or motor is a machine designed to convert one form of energy into mechanical energy. Heat engines, like the internal combustion engine, burn a fuel to create heat, used to do work. Electric motors convert electrical energy into mechanical motion, pneumatic motors use compressed air, clockwork motors in wind-up toys use elastic energy. In biological systems, molecular motors, like myosins in muscles, use chemical energy to create forces and motion; the word engine derives from Old French engin, from the Latin ingenium–the root of the word ingenious. Pre-industrial weapons of war, such as catapults and battering rams, were called siege engines, knowledge of how to construct them was treated as a military secret; the word gin, as in cotton gin, is short for engine. Most mechanical devices invented during the industrial revolution were described as engines—the steam engine being a notable example. However, the original steam engines, such as those by Thomas Savery, were not mechanical engines but pumps.
In this manner, a fire engine in its original form was a water pump, with the engine being transported to the fire by horses. In modern usage, the term engine describes devices, like steam engines and internal combustion engines, that burn or otherwise consume fuel to perform mechanical work by exerting a torque or linear force. Devices converting heat energy into motion are referred to as engines. Examples of engines which exert a torque include the familiar automobile gasoline and diesel engines, as well as turboshafts. Examples of engines which produce thrust include rockets; when the internal combustion engine was invented, the term motor was used to distinguish it from the steam engine—which was in wide use at the time, powering locomotives and other vehicles such as steam rollers. The term motor derives from the Latin verb moto which means to maintain motion, thus a motor is a device. Motor and engine are interchangeable in standard English. In some engineering jargons, the two words have different meanings, in which engine is a device that burns or otherwise consumes fuel, changing its chemical composition, a motor is a device driven by electricity, air, or hydraulic pressure, which does not change the chemical composition of its energy source.
However, rocketry uses the term rocket motor though they consume fuel. A heat engine may serve as a prime mover—a component that transforms the flow or changes in pressure of a fluid into mechanical energy. An automobile powered by an internal combustion engine may make use of various motors and pumps, but all such devices derive their power from the engine. Another way of looking at it is that a motor receives power from an external source, converts it into mechanical energy, while an engine creates power from pressure. Simple machines, such as the club and oar, are prehistoric. More complex engines using human power, animal power, water power, wind power and steam power date back to antiquity. Human power was focused by the use of simple engines, such as the capstan, windlass or treadmill, with ropes and block and tackle arrangements; these were used in cranes and aboard ships in Ancient Greece, as well as in mines, water pumps and siege engines in Ancient Rome. The writers of those times, including Vitruvius and Pliny the Elder, treat these engines as commonplace, so their invention may be more ancient.
By the 1st century AD, cattle and horses were used in mills, driving machines similar to those powered by humans in earlier times. According to Strabo, a water powered mill was built in Kaberia of the kingdom of Mithridates during the 1st century BC. Use of water wheels in mills spread throughout the Roman Empire over the next few centuries; some were quite complex, with aqueducts and sluices to maintain and channel the water, along with systems of gears, or toothed-wheels made of wood and metal to regulate the speed of rotation. More sophisticated small devices, such as the Antikythera Mechanism used complex trains of gears and dials to act as calendars or predict astronomical events. In a poem by Ausonius in the 4th century AD, he mentions a stone-cutting saw powered by water. Hero of Alexandria is credited with many such wind and steam powered machines in the 1st century AD, including the Aeolipile and the vending machine these machines were associated with worship, such as animated altars and automated temple doors.
Medieval Muslim engineers employed gears in mills and water-raising machines, used dams as a source of water power to provide additional power to watermills and water-raising machines. In the medieval Islamic world, such advances made it possible to mechanize many industrial tasks carried out by manual labour. In 1206, al-Jazari employed a crank-conrod system for two of his water-raising machines. A rudimentary steam turbine device was described by Taqi al-Din in 1551 and by Giovanni Branca in 1629. In the 13th century, the solid rocket motor was invented in China. Driven by gunpowder, this simplest form of internal combustion engine was unable to deliver sustained power, but was useful for propelling weaponry at high speeds towards enemies in battle and for fireworks. After invention, this innovation spread throughout Europe; the Watt steam engine was the first type of steam engine to make use of steam at a pressure just above atmospheric to drive the piston he
Mercedes-Benz is a German global automobile marque and a division of Daimler AG. The brand is known for luxury vehicles, buses and trucks; the headquarters is in Baden-Württemberg. The name first appeared in 1926 under Daimler-Benz. In 2018, Mercedes-Benz was the biggest selling premium vehicle brand in the world, having sold 2.31 million passenger cars. Mercedes-Benz traces its origins to Daimler-Motoren-Gesellschaft's 1901 Mercedes and Karl Benz's 1886 Benz Patent-Motorwagen, regarded as the first gasoline-powered automobile; the slogan for the brand is "the best or nothing". Mercedes-Benz traces its origins to Karl Benz's creation of the first petrol-powered car, the Benz Patent Motorwagen, financed by Bertha Benz and patented in January 1886, Gottlieb Daimler and engineer Wilhelm Maybach's conversion of a stagecoach by the addition of a petrol engine that year; the Mercedes automobile was first marketed in 1901 by Daimler-Motoren-Gesellschaft. Emil Jellinek, an Austrian automobile entrepreneur who worked with DMG, created the trademark in 1902, naming the 1901 Mercedes 35 hp after his daughter Mercedes Jellinek.
Jellinek was a businessman and marketing strategist who promoted "horseless" Daimler automobiles among the highest circles of society in his adopted home, which, at that time, was a meeting place for the "Haute Volée" of France and Europe in winter. His customers included other well-known personalities, but Jellinek's plans went further: as early as 1901, he was selling Mercedes cars in the New World as well, including US billionaires Rockefeller, Astor and Taylor. At a race in Nice in 1899, Jellinek drove under the pseudonym "Monsieur Mercédès", a way of concealing the competitor's real name as was normal and regularly done in those days; the race ranks as the hour of birth of the Mercedes-Benz brand. In 1901, the name "Mercedes" was registered by Daimler-Motoren-Gesellschaft worldwide as a protected trademark; the first Mercedes-Benz brand name vehicles were produced in 1926, following the merger of Karl Benz's and Gottlieb Daimler's companies into the Daimler-Benz company on 28 June of the same year.
Gottlieb Daimler was born on 17 March 1834 in Schorndorf. After training as a gunsmith and working in France, he attended the Polytechnic School in Stuttgart from 1857 to 1859. After completing various technical activities in France and England, he started working as a draftsman in Geislingen in 1862. At the end of 1863, he was appointed workshop inspector in a machine tool factory in Reutlingen, where he met Wilhelm Maybach in 1865. Throughout the 1930s, Mercedes-Benz produced the 770 model, a car, popular during Germany's Nazi period. Adolf Hitler was known to have driven these cars during his time in power, with bulletproof windshields. Most of the surviving models have been sold at auctions to private buyers. One of them is on display at the War Museum in Ottawa, Ontario; the pontiff's Popemobile has been sourced from Mercedes-Benz. In 1944, 46,000 forced laborers were used in Daimler-Benz's factories to bolster Nazi war efforts; the company paid $12 million in reparations to the laborers' families.
Mercedes-Benz has introduced many technological and safety innovations that became common in other vehicles. Mercedes-Benz is one of the best-known and established automotive brands in the world. For information relating to the famous three-pointed star, see under the title Daimler-Motoren-Gesellschaft, including the merger into Daimler-Benz; as part of the Daimler AG company, the Mercedes-Benz Cars division includes Mercedes-Benz and Smart car production. Mercedes-AMG became a majority owned division of Mercedes-Benz in 1999; the company was integrated into DaimlerChrysler in 1999, became Mercedes-Benz AMG beginning on 1 January 1999. Daimler's ultra-luxury brand Maybach was under Mercedes-Benz cars division until 2013, when the production stopped due to poor sales volumes, it now exists under the Mercedes-Maybach name, with the models being ultra-luxury versions of Mercedes cars, such as the 2016 Mercedes-Maybach S600. Daimler cooperates with BYD Auto to sell a battery-electric car called Denza in China.
In 2016, Daimler announced plans to sell. Beside its native Germany, Mercedes-Benz vehicles are manufactured or assembled in: Since its inception, Mercedes-Benz has maintained a reputation for its quality and durability. Objective measures looking at passenger vehicles, such as J. D. Power surveys, demonstrated a downturn in reputation in these criteria in the late 1990s and early 2000s. By mid-2005, Mercedes temporarily returned to the industry average for initial quality, a measure of problems after the first 90 days of ownership, according to J. D. Power. In J. D. Power's Initial Quality Study for the first quarter of 2007, Mercedes showed dramatic improvement by climbing from 25th to 5th place and earning several awards for its models. For 2008, Mercedes-Benz's initial quality rating improved to fourth place. On top of this accolade, it received the Platinum Plant Quality Award for its Mercedes’ Sindelfingen, Germany assembly plant. J. D. Power's 2011 US Initial Quality and Vehicle Dependability Studies both ranked Mercedes-Benz vehicles above average in build quality and reliability.
In the 2011 UK J. D. Power Survey, Mercedes cars were rated above average. A 2014 iSeeCars.com study for Reuters found Mercedes to have the lowest vehicle recall rate. Mercedes-Benz offers a full range of light commercial and heavy commercial equipment. Vehicles are manufactured in multiple countries worldwide; the Smart marque of city cars are produced by Daimler AG
Transperth is the brand name of the public transport system serving the city and suburban areas of Perth, the state capital of Western Australia. It is operated by the Public Transport Authority. In August 1958, the Metropolitan Transport Trust commenced operations with the takeover of Beam Transport and Metro Buses by the Government of Western Australia. Subsequently all private bus operators in Perth were acquired. In August 1986, the Metropolitan Transport Trust was rebranded as Transperth. In February 1995 the provision of ferry services was contracted to Captain Cook Cruises. In September 1993, the Government announced Transperth would be corporatised and opened up to competition. In February 1995 in preparation for privatisation, Transperth was restructured with the operation of services transferred to MetroBus, with ownership of the buses retained by Transperth. In September 1994, expressions of interest were sought from organisations for the operation of Transperth bus services in the Armadale South and Joondalup North areas.
MetroBus bid to retain these services. The remaining services were tendered in 1995/96 to Connex, Path Transit, Southern Coast Transit and Swan Transit. Connex sold its operation to Swan Transit in September 2002, before re-entering the market by purchasing Southern Coast Transit. Transperth retained ownership of the buses leasing them to the operators. MetroBus did not win any further tenders and operated its last bus on 4 July 1998; the Metropolitan Transport Trust adopted an olive cream livery. Following the 1986 rebranding as Transperth a green and white livery was introduced, this being replaced in 1999 by a grey/silver and green livery; this livery was inversed in 2010 as part of a refurbishment. Transperth offers bus and train services which serve the Perth Metropolitan Area from the Perth CBD, east to Wundowie, west to Fremantle, south to Mandurah-Pinjarra and north to Two Rocks; these suburbs are divided into nine fare-zones according to distance from the city centre. Bus services in Perth are operated by three private companies with services divided into 11 zones that are re-tendered every 10 years.
As at June 2018 the contracts were held by: Path Transit: Kalamunda & Morley Swan Transit: Canning, Marmion, Southern River & Beenyup Transdev WA: Fremantle, Rockingham & Perth CATTransperth oversees and regulates a bus service throughout the Perth metropolitan area and some fringe rural areas. Routes follow two basic formats: feeder services between residential suburbs and bus stations or bus/train interchanges, routes directly to the CBD. There are some cross-suburban services, most notably the CircleRoute. Additional services are provided for special events. Transperth's most frequent bus routes run from 05:00 until 24:00 with services every 4–15 minutes on weekdays and every 15–30 minutes on evenings and weekends. Most other local routes run about every 10 minutes in peak periods reducing to every 30 minutes during the day in inner Perth with outer feeder services running every 15–20 minutes in peak periods and every 60 minutes during the day, with reduced service on evenings and weekends.
Services to and from railway stations are co-ordinated to connect with every, second or every fourth train. The Perth Central Area Transit bus is a free bus service that serves central areas in Perth city and Joondalup. In the centre of Perth, there are four routes. In Fremantle there are the red cat and blue cat serving tourist destinations. In Joondalup three routes, the red and blue CAT routes, which operate around the Joondalup CBD and Edith Cowan University; the CAT system is responsible for the operation of the Midland Gate Shuttle, Rockingham City Centre Transit System. The main CAT systems are operated by Transdev WA; as of 2018, the fleet consisted of 1,475 buses Volgren bodied Mercedes-Benz and Volvos. Transperth operated large numbers of AEC Regal VIs, Leyland Royal Tiger Worldmasters, Leyland Leopards, Leyland Panthers, Leyland Tiger Cubs, Hino RC520Ps, Mercedes-Benz Citaros, Mercedes-Benz O305s and Mercedes-Benz O405s, Renault PR100.2s, Renault PR180.2s and a Renault PR100.3. As of September 2015, there have been a number of catastrophic fires aboard the fleet's natural gas powered Mercedes-Benz OC 500 LEs.
It was discovered that there were possible faults in the on-board fire suppression system installed in the engine compartment at the rear of the bus. A bus fire at the Elizabeth Quay bus station in July was said to have been caused by a leaking coolant cell. A series of one-off fires have occurred in two of the fleet's Mercedes-Benz O405NH diesel buses, both of which were sparked by frayed fan belts. Nobody was injured in any bus fires as the drivers were quick to respond and evacuate any passengers before the fires became lethal. CircleRoute: The CircleRoute is a cross suburban route that links numerous railway stations, shopping centres, universities and the port city of Fremantle. Services run 5 -- 15 minutes weekdays and 15 -- 30 minutes public holidays. Central Area Transit: Transperth operates CAT bus services around the Perth and Joondalup CBDs. Services run every 10 -- 15 minutes on weekends. Red CAT: Southern East Perth to West Perth Yellow CAT: Northern East Perth to West Perth Blue CAT: North to south Green CAT: Leederville station to Elizabeth Quay bus station Red CAT: Northern Fremantle