|  | G |
SECTION G — PHYSICS

INSTRUMENTS

|  | G08 |
SIGNALLING (indicating or display devices per se Fulltext... Hierarchy... Expanded...G09F; transmission of pictures Fulltext... Hierarchy... Expanded...H04N; arrangements for selective calling from one station to another Fulltext... Hierarchy... Expanded...H04Q 9/00)

|  | G08G |
TRAFFIC CONTROL SYSTEMS (road engineering aspects Fulltext... Hierarchy... Expanded...E01F 9/00; mounting of detectors in or on roads Fulltext... Hierarchy... Expanded...E01F 11/00)

|  | G08G |
Note(s) This sub-class includes: identification of traffic offenders; indication of the position of scheduled vehicles; indication of free spaces in parking areas.

|  | G08G 1/00 |
Traffic control systems for road vehicles

|  | G08G 1/01 |
· | Detecting movement of traffic to be counted or controlled (Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...G08G 1/07-G08G 1/14 take precedence)

|  | G08G 1/015 |
· · | with provision for distinguishing between two or more types of vehicles, e.g. between motor cars and cycles

|  | G08G 1/02 |
· · | using treadles built into the road (pads or other sensitive devices responsive to passage of vehicles Fulltext... Hierarchy... Expanded...E01F 11/00)

|  | G08G 1/04 |
· · | using optical or ultrasonic detectors

|  | G08G 1/06 |
· · | using radar, e.g. Doppler radar

|  | G08G 1/065 |
· | by counting the vehicles in a section of the road or in a parking area, i.e. comparing incoming count with outgoing count

|  | G08G 1/07 |
· | Controlling traffic signals

|  | G08G 1/08 |
· · | according to detected number or speed of vehicles

|  | G08G 1/085 |
· · | using a free-running cyclic timer

|  | G08G 1/09 |
· | Arrangements for giving variable traffic instructions (displaying variable information in general Fulltext... Hierarchy... Expanded...G09F 9/00)

|  | G08G 1/095 |
· · | Traffic lights

|  | G08G 1/096 |
· · | Indicators in which a mark progresses showing the time elapsed, e.g. of green phase

|  | G08G 1/097 |
· | Supervising of traffic control systems, e.g. by giving an alarm if two crossing streets have green light simultaneously

|  | G08G 1/10 |
· | taking photographs, e.g. of vehicles travelling at a speed in excess of a predetermined value

|  | G08G 1/12 |
· | indicating the position of scheduled vehicles, e.g. of buses to a central station

|  | G08G 1/14 |
· | indicating individual free spaces in parking areas

|  | G08G 3/00 |
Traffic control systems for marine craft (radar systems Fulltext... Hierarchy... Expanded...G01S)

|  | G08G 3/02 |
· | Anti-collision warning systems

|  | G08G 5/00 |
Traffic control systems for aircraft (radar systems Fulltext... Hierarchy... Expanded...G01S)

|  | G08G 5/02 |
· | Automatic landing aids, i.e. systems in which flight data of incoming planes are processed to provide landing data

|  | G08G 5/04 |
· | Anti-collision systems