Signage adalah papan petunjuk berisi informasi pendek dan singkat untuk orang lain yg melihatnya, bentuknya bisa macam macam. Misal nama toko "Toko Kelontong Berkah", itu bisa juga disebut signage, demikian juga halnya rambu petunjuk arah jalan yang bisa dilihat disemua ruas jalan. Orang kita bilangnya: "Plang Papan Nama", mungkin itu penyebutan paling populer diantara kita.
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The French enseigne indicates its essential connection with what is known in English as a flag, and in France, banners not infrequently took the place of signs or sign boards in the Middle Ages. Signs, however, are best known in the form of painted or carved advertisements for shops, inns, etc. They are one of various emblematic methods used from time immemorial for publicly calling attention to the place to which they refer.
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ROMAN TIMES: A sign is a symbol to transfer information with words or pictures to other people. The earliest signs were used for directions by the Romans who erected columns with Roman numerals along the roadways to inform travellers the distance to Rome. As cities and towns grew signs became popular at crossroads to inform travellers where they were headed.
1900: At the beginning of the 20th century with the development of automobiles it became important to inform drivers of directions. At the 1908 International Road Congress in Rome a format was laid down for basic road signs. The first signs were carved into wood or painted onto wood. Today signs are made from aluminium or metal for durability.
1970: When the South Eastern Freeway was first opened in the early 1970's the Victorian CRB (now known as Vic Roads) used a changeable message sign made from formed neon tubes. The three messages available were ...
FREEWAY CLOSED
ACCIDENT ON FREEWAY
ROADWORKS ON FREEWAY
The sign was normally blank unless one of the previous messages was required. The sign was operated at the sign or remotely from the control room.
1980: The first changeable message sign was developed in the early 1980's by a company called Wink-O-Matic in the United States. They used small 25w, 110v light globes and a large diesel engine to operate the sign. A number of US states purchased these units for freeways. These signs were expensive to run and required high maintenance. In the mid 1980's a company called Addco purchased Fultron flip dots, these were a dot with one side black and the other side florescent green.
The flip dots were activated by an electromagnetic filed to flip the dots. They were made up of eight characters and three lines, and were lit at night by ultra violet fluorescence tubes. Fultron then used the same flip dot and added 2 LED (light emitting diode) so the sign could be seen at night. These signs were so successful that other companies such as American Signal started to manufacture simular units.
1990: In the early 1990's there was a major improvement made by Precision Solar Controls who developed an all LED changeable message sign. PSC manufactured a special frensal lens that was made of a 2 inch or 50mm square block of light. PSC have been so successful in their design they are still manufactured today. No other manufacturer has come close to manufacturing a board of simular quality and reliability.
1993: Tech Road Manufacturing commenced trading in 1993 as Tech Road and became the distributor of Precision Solar boards that are recognized as the best in the world.
1996: In 1996 Tech Road developed a message board with 400mm high characters 8รข€™ or 2.4m wide for the ease of city traffic management. These signs could be positioned on nature strips and medium strips where other boards were too large. This size board which Tech Road developed has been copied by many other companies throughout the world; with the 400mm high characters have now become a world standard.
2005: In 2005 the LEDs have improved in performance and brightness by +80%, this is enabling a reduction in solar panels and batteries. The LEDs have reduced drastically in price that has made the signs 50% less than a decade earlier.
Over the past 20 years the introduction of electronic variable message signs (VMS) has increased dramatically to provide traveller information along highways at airports and for pedestrian and driver signalling. The accurate and often real-time information that these devices display to travellers in highway and transit environments has made improvements to transportation in the late 20th and early part of the 21st century.
2006: Variable Message Signs International P/L commenced in-house manufacture of all equipment, enabling us to have full control over quality and development. VMSI is constantly striving for new and innovative ways to further develop the traffic management industry offering our equipment to countries worldwide.
TODAY: Today along freeways throughout the world large permanent electronic signs automatically display information about traffic conditions, accidents or weather conditions affecting the road. There are signs with sensors that can monitor speed and traffic conditions and change messages accordingly. Portable trailer mounted signage is used to assist with temporary traffic management this may include car accidents, level crossing accidents, water over the road, oil petrol on the road, road washed away or caved in, unsafe bridges, and sporting events or community entertainment.
LED (Light Emitting Diode) VMS are constructed of a matrix of LEDs, with clusters of LEDs acting as a single element. The number of LEDs per cluster is dependent on sign size. Most transit VMS use either a single LED per element on signs with 10cm letter heights and four LEDs per element for the larger signs. The illumination of select LEDs creates the message.
