Signal-free roadway interchange

Abstract

Taught herein is a signal-free roadway interchange, comprising a plurality of longitudinal lanes and a plurality of transverse lanes intersecting the longitudinal lanes; wherein an intersection between the longitudinal lane and the transverse lane is grade-separated, one of the longitudinal lane and the transverse lane ascends gradually at first, crosses a lane perpendicular thereto, and descends gradually to form a viaduct; a plurality of right-turn lanes are disposed at four corners of the intersection, for connecting to the transverse lanes or longitudinal lanes perpendicular thereto; a plurality of pedestrian bridges crossing the longitudinal lanes and the transverse lanes are disposed at four outer corners of the intersection; and a pair of pedestrian channels respectively parallel to the longitudinal lanes and the transverse lanes connect every two opposite pedestrian bridges. The signal-free roadway interchange does not need signal lights, and enables vehicles and pedestrians to pass separately without stoppage, which greatly improves the traffic condition, and reduces fatalities caused by traffic accidents.

1 . A signal-free roadway interchange, comprising 
 a plurality of longitudinal lanes; and    a plurality of transverse lanes disposed non-parallel to the longitudinal lanes;    wherein    the longitudinal lanes and the transverses lane are grade-separated;    one of the longitudinal lane or the transverse lane ascends gradually at first, then crosses the other to form a viaduct, and descends gradually;    a plurality of right-turn lanes for connecting to the transverse lanes or longitudinal lanes perpendicular thereto, are disposed at four corners of the interchange;    a plurality of pedestrian bridges crossing the longitudinal lanes and the transverse lanes are disposed at the four outer corners of the interchange; and    a pair of pedestrian channels parallel to the longitudinal lanes and the transverse lanes, respectively, connect every two opposite pedestrian bridges.    
   
   
       2 . The interchange of  claim 1 , wherein either the longitudinal lanes or the transverse lanes pass under the viaduct.  
   
   
       3 . The interchange of  claim 1 , wherein a plurality of regions separated from each other are formed at the outer portion of the longitudinal lanes and the transverse lanes.  
   
   
       4 . The interchange of  claim 1 , further comprising a plurality of arc-shaped right-hand turn lanes for connecting the longitudinal lanes with the transverse lanes, and for enabling vehicles traveling on the longitudinal lanes to make a right turn into the transverse lanes, or vice versa.  
   
   
       5 . The interchange of  claim 1 , wherein each of the pedestrian channels extends from the opposite pedestrian bridges.  
   
   
       6 . The interchange of  claim 5 , wherein the pedestrian channel is disposed higher than the longitudinal lane or the transverse lane.  
   
   
       7 . The interchange of  claim 6 , further comprising four separation zones disposed at four inner corner of the interchange, respectively.  
   
   
       8 . The interchange of  claim 7 , wherein a width of the pedestrian channel is approximately the same as that of the separation zone.  
   
   
       9 . The interchange of  claim 1 , wherein the longitudinal lane or the transverse lane descends gradually when approaching the pedestrian bridge.  
   
   
       10 . The interchange of  claim 9 , wherein the longitudinal lane or the transverse lane ascends gradually when traveling off the pedestrian bridge.  
   
   
       11 . A signal-free roadway interchange, comprising 
 a plurality of longitudinal lanes; and    a plurality of transverse lanes disposed non-parallel to the longitudinal lanes;    wherein    the longitudinal lanes and the transverses lane are grade-separated;    one of the longitudinal lane and the transverse lane ascends gradually at first, then crosses a lane perpendicular thereto to form a viaduct, and descends gradually;    a plurality of right-turn lanes are disposed at four corners of the interchange, for connecting to the transverse lanes or longitudinal lanes perpendicular thereto;    a plurality of pedestrian bridges crossing the longitudinal lanes and the transverse lanes are disposed at a certain distance away from the interchange; and    a pair of pedestrian channels respectively parallel to the longitudinal lanes and the transverse lanes connect every two opposite pedestrian bridges.    
   
   
       12 . The interchange of  claim 11 , wherein one of the longitudinal lanes or the transverse lanes passes under the viaduct.  
   
   
       13 . The interchange of  claim 11 , wherein a plurality of regions separated from each other are formed at the outer portion of the longitudinal lanes and the transverse lanes.  
   
   
       14 . The interchange of  claim 11 , further comprising a plurality of arc-shaped right-hand turn lanes for connecting the longitudinal lanes with the transverse lanes, and for enabling vehicles traveling on the longitudinal lanes to make a right turn into the transverse lanes, or vice versa.  
   
   
       15 . The interchange of  claim 11 , wherein each of the pedestrian channels extends from the opposite pedestrian bridges.  
   
   
       16 . The interchange of  claim 15 , wherein the pedestrian channel is higher than the longitudinal lane or the transverse lane.  
   
   
       17 . The interchange of  claim 16 , further comprising four separation zones disposed at four inner corner of the interchange, respectively.  
   
   
       18 . The interchange of  claim 17 , wherein a width of the pedestrian channel is approximately the same as that of the separation zone.  
   
   
       19 . The interchange of  claim 11 , wherein the longitudinal lane or the transverse lane descends gradually when approaching the pedestrian bridge.  
   
   
       20 . The interchange of  claim 19 , wherein the longitudinal lane or the transverse lane ascends gradually when traveling off the pedestrian bridge.