Intelligent traffic system

Abstract

In the field of intelligent traffic, the invention discloses an intelligent traffic system, and provides a rapid and preferential driving mode of a temporary motorcade (the temporary motorcade refers to vehicles which go straight and drive out from a previous intersection and still go straight when arriving at a next intersection); each intersection gives consideration to an opening mode and a closing mode; and a road management mode is implemented at each intersection. The temporary motorcade fast and preferential driving mode is characterized in that when the temporary motorcade drives to each intersection, pedestrians, motor vehicles and non-motor vehicles are not allowed to cross with the temporary motorcade, and right-turning motor vehicles are not allowed to enter the temporary motorcade; the intersections give consideration to opening and closing modes, which means that the variable quantity of the speed per hour of 45-70 is used as an adjusting means to realize corresponding opening (closing) of mutually connected channels of the two intersections.

Description

Technical Field

[0001] The present invention relates to intelligent transportation, and in particular to an intelligent transportation system. Background Art

[0002] This case introduces an intelligent transportation system, which proposes: a fast and priority driving mode for temporary fleets; a road-based management mode for each intersection; and a mode in which each intersection is opened (closed) in consideration of each other. The superposition of these three innovative modes provides a strong guarantee for the safe and fast driving of vehicles. Summary of the invention

[0003] The present invention introduces an intelligent traffic system, which proposes (i) a fast and priority driving mode for temporary fleets, (ii) a road management mode for each intersection; (iii) a non-motor vehicle left turn waiting area is set on the motor vehicle lane at the intersection; (iv) a calculation method for the opening (closing) of each phase of each intersection; (v) a "clearance" signal light is set on the road outside the intersection; (vi) a waiting area for vehicles to exit the temporary fleet is set at the intersection; (vii) two traffic modes are implemented on the road; and (viii) a time indicator (light) is set on the road to inform the driver of the recommended driving speed in the current section and the time when the straight lane of the next intersection is about to open (close).

[0004] The temporary convoy refers to vehicles that exit the straight lane at the previous intersection and continue to drive on the straight lane at the next intersection; (i) the fast and priority driving mode of the temporary convoy means that when the temporary convoy drives to each intersection, pedestrians, motor vehicles, and non-motor vehicles are not allowed to cross with it, and right-turning motor vehicles are not allowed to merge into it; (ii) the road management mode is implemented at each intersection, which means that the traditional opening (closing) of the intersection is changed from two cycles to four cycles. If one phase of the intersection is opened, the other three phases are in the closed period, {sometimes the straight lanes of the east and west intersections are one group (phase), the left turn lanes of the east and west intersections are one group (phase), the straight lanes of the south and north intersections are one group (phase), and the left turn lanes of the south and north intersections are one group (phase)}. This four-cycle opening (closing) method of the intersection is used by temporary convoys to arrive at the When passing through the intersection, it will not cross with other vehicles or non-motor vehicles, and thus pass through the intersection at the driving speed allowed by the road; (iii) the non-motor vehicle left turn waiting area is set on the motor vehicle lane at the intersection, which means that the non-motor vehicle turning left does not turn left directly on the non-motor vehicle lane. When the intersection is in a red light state, it first enters the non-motor vehicle left turn waiting area, and when the intersection is in an open state, it exits the non-motor vehicle left turn waiting area, so as not to form a crossing driving phenomenon with the straight-moving motor vehicle; (iv) the calculation method for the opening of each phase of each intersection [the east, south, west, and north intersections in the intersection are divided into (remember) 1-phase, 2-phase, 3-phase, and 4-phase intersections, but they are not corresponding], step (1): set the opening (closing) cycle of each phase of each intersection, and the opening (closing) cycle of each intersection in the area is the same; step (2): divide the cycle value by 4( ÷4), that is, the opening time value of each phase intersection is obtained, and the time value divided by 2 is the "multiplier base"; according to the distance between the two intersections, select an appropriate value and multiply it by the "multiplier base" to obtain the travel time value of the two intersections; step (3): add the opening time of the first phase intersection of the previous intersection to the travel time value of the two intersections, and this value is the opening time of the first phase intersection of the next intersection (when the number of non-temporary fleet vehicles arriving in advance is too large, or affected by other factors, this opening time, On this basis, appropriate adjustments are made, and the following phase opening times are also described in the same way and will not be repeated); Step (4) The opening time of the opposite (phase) intersection of the first phase intersection of the previous intersection is subtracted from the travel time values ​​of the two intersections (when the value is less than the opening time value of the first phase intersection of the next intersection, the opening time numbers are subtracted in the next cycle) to obtain the opening time of the opposite (phase) intersection of the first phase intersection of the next intersection [when the opening time of the first phase intersection of the next intersection coincides with the opening time of its opposite (phase) intersection, their left-turn channel intersections form another phase sequence, the other straight channel intersection and its opposite (phase) intersection form another phase sequence, and their left-turn channel intersections also form another phase sequence], and the opening order of the remaining two phase intersections is selected according to the coordination degree of the two phase intersections connected to them;Step (5): According to the traffic volume of each phase of the intersection, the opening and closing time are appropriately added and subtracted. When one phase is added, the other phase adjacent to it is subtracted, and the cycle remains unchanged; when the opening (closing) time of the intersection of the entire horizontal and longitudinal roads in the entire area is continuously calculated, the "next intersection" mentioned above becomes another intersection connected to it corresponding to the "previous intersection" and this intersection becomes the "next intersection" and so on, and the calculation can be performed according to the above method; (V) The "clearance" signal light is set on the road outside the intersection, which means that when a temporary convoy drives to a congested intersection, and this phase of the intersection is during the red light period, in order to ensure the traffic efficiency of the intersection, a group of "clearance" signal lights are artificially set on the road outside the intersection, that is, the vehicles are The starting time of the vehicle is placed here, so that 3 to 5 seconds are saved for the intersection in a cycle; (vi) The above-mentioned waiting area for vehicles to exit the temporary convoy is set up at the intersection, which means: when a vehicle exits the temporary convoy at the intersection, if it is blocked by pedestrians, motor vehicles, or non-motor vehicles, it can first enter the waiting area, so as not to affect the rapid driving of the following vehicles; (vii) The above-mentioned road implements two traffic modes, which means: in order to ensure the rapid and safe driving of the temporary convoy, all lane intersections, community intersections, factory and mine intersections, etc. are equipped with no-traffic lights. When the temporary convoy drives to each intersection, the cross-traffic behavior with it is prohibited. After the temporary convoy passes the time period, all lane intersections, community intersections, factory and mine intersections, etc. will resume the original cross-traffic traffic status. ;

Claims

1. An intelligent transportation system, characterized in that: The calculation method of the opening (closing) time of each phase of each intersection is as follows: step (1): set the opening (closing) cycle of the intersections in the area [the opening (closing) cycle of each intersection in the area is the same]; step (2): divide the cycle value by 4 (÷4) to obtain the opening time value of each phase of the intersection, and divide the cycle time value by 8 (÷8) to obtain the distance between the two intersections and the "multiplier base" required for driving; according to the distance between the two intersections, select an appropriate value and multiply it by the "multiplier base" to obtain the driving time value of the two intersections; step (3): add the opening time of the first phase of the previous intersection to the driving time value of the two intersections, and this value is the opening time of the first phase of the next intersection (when the number of non-temporary fleet vehicles arriving in advance is too large, or is affected by other factors, this opening time, On this basis, appropriate adjustments are made, and the following phase opening times are also described in the same way and will not be repeated); Step (4) The opening time of the opposite (phase) intersection of the first phase intersection of the previous intersection is subtracted from the travel time values ​​of the two intersections [when the value is less than the opening time value of the first phase intersection of the next intersection, the opening time of the next cycle (phase sequence unchanged) is subtracted] to obtain the opening time of the opposite (phase) intersection of the first phase intersection of the next intersection [when the opening time of the first phase intersection of the next intersection coincides with the opening time of its opposite (phase) intersection, their left turn channel intersections form another phase sequence, and the other straight channel intersection and its opposite (phase) intersection, form [0045] The order of opening the remaining two-phase intersections is selected according to the coordination degree of the two-phase intersections connected to them. Step (5): According to the traffic volume of each phase intersection, the opening and closing time are appropriately added and subtracted. When one phase is added, the other phase adjacent to it is subtracted, and the cycle remains unchanged. When the opening (closing) time of the intersections of the entire horizontal and longitudinal roads in the entire area is continuously calculated, the "next intersection" in the above becomes the "previous intersection" corresponding to the other intersection connected to it, and this intersection becomes the "next intersection", and so on. The calculation can be carried out according to the above method.

2. When there is a conflict in the phase opening time of the "closed" intersections of multiple longitudinal and transverse roads in the area, a "breakthrough" signal light is set on the road outside the intersection; the vehicle start time is placed here to ensure the passing efficiency of the intersection.