Difficult Topic Explained in a simple manner, everyone can understand sir. Thank you sir 🙏. In future videos please explain about traffic signal co-ordination
6:02 In the Netherlands (and some other countries) they also consider the travel time from the next phase's stopline to nearest conflict point (entry time), resulting in a shorter all-red period.
Yes, this is also one concept to permit the vehicles which remain in the intersection area at the termination of green to clear the area before onset of green for the next phase.
Nice video. Sir please add "All red time is provided for the safety. This will allow any vehicles jumps the red signal will have sufficient time to clear the intersection. This time will vary based on the size of the intersection". Thanks
If Right turn traffic moves with through traffic, then through and RT should move in the same phase. In that case convert all RT traffic to equivalent through traffic by taking Some equivalency factor for each RT vehicle (generally 1.75). S to be estimated for total width being used by TH + RT
I have got 3 phases i.e ns ,ew, pedestrian , i want the 4th phase, is it the right turn from ns or right turn from ew , how ever can i use the (East bound and west bound approach )for (north and south right turn) if i have no dedicated right turn lane, if not the what are the steps ... It means the world for students like us sir❤️
@@SonGoku-mf9zb Even if you do not have dedicated RT lane, you can certainly have exclusive lane for these vehicles. The rule is the heaviest RT must be protected. Therefore you see which one is more in number (E-W or N-S). Another way of adding a phase could be that in one phase you allow (RT + TH) from EB approach, in the second phase (RT + TH) from WB approach and in the third phase all movements from N-S. Take a decision based on traffic volume and delay being experienced by the vehicles on differenct approaches.
I used to believe that traffic signal design was simple, but after reading Roess, Prassas, and Mcshane's book (Traffic Engineering), I realised that it is a very broad topic.
In a normal case, total Y does not exceed 1. If it exceeds it suggests that traffic signal cannot take the traffic load at junction. In that case, look at individual values of yi and see which arm of the intersection needs to be widened to increase Si. Alternatively, go for overpass or undepass for major road.
Thank you for your nice explanation, sir, I have one doubt regarding the saturation flow, as per IRC 93 1985 page no 37 S=525W is valid only for 5.5m to 18m width, for lesser width of the road there are some values given in page no 38, but in your example 1 you have taken 525W for lesser widths, could you please let me know why did you take that?
Yes, you are correct. These values of S should be taken as per table given in IRC code, page 38. You may redo this example and see the difference Thanks
Phase is the position of the signal during which it shows a particular indication, like green phase or red phase. interval is the time duration in seconds, a signal indication remains unaltered.
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Thank you sir for the insightful lecture It was incredibly helpful for my master's project.
I am very happy to note that it was helpful. Keep watching
Difficult Topic Explained in a simple manner, everyone can understand sir. Thank you sir 🙏. In future videos please explain about traffic signal co-ordination
Sure I will
thank you sir for these awesome videos.These are very much helpful.
I am happy to note that these are useful. Keep watching and send the link to your friends also.
Sir very beautifully explained the topic
Thanks. Keep watching
Thanks alot to this video sir really helpfull. Glad I got this topic
Keep watching. have a look at playlist in traffic Engineering, may be a few more of your interest.
Thank you sir for your valuable guidance.
Glad you liked it.
6:02 In the Netherlands (and some other countries) they also consider the travel time from the next phase's stopline to nearest conflict point (entry time), resulting in a shorter all-red period.
Yes, this is also one concept to permit the vehicles which remain in the intersection area at the termination of green to clear the area before onset of green for the next phase.
Nice video. Sir please add "All red time is provided for the safety. This will allow any vehicles jumps the red signal will have sufficient time to clear the intersection. This time will vary based on the size of the intersection". Thanks
Thank you so much
Very nicely presented sir
Thanks for liking. Share the link with others also.
সেরা সেরা।কোপ কোপ, :3
would appreciate in English
What if there is no dedicated right turn
If Right turn traffic moves with through traffic, then through and RT should move in the same phase. In that case convert all RT traffic to equivalent through traffic by taking Some equivalency factor for each RT vehicle (generally 1.75). S to be estimated for total width being used by TH + RT
I have got 3 phases i.e ns ,ew, pedestrian , i want the 4th phase, is it the right turn from ns or right turn from ew , how ever can i use the (East bound and west bound approach )for (north and south right turn) if i have no dedicated right turn lane, if not the what are the steps ...
It means the world for students like us sir❤️
@@SonGoku-mf9zb Even if you do not have dedicated RT lane, you can certainly have exclusive lane for these vehicles. The rule is the heaviest RT must be protected. Therefore you see which one is more in number (E-W or N-S).
Another way of adding a phase could be that in one phase you allow (RT + TH) from EB approach, in the second phase (RT + TH) from WB approach and in the third phase all movements from N-S. Take a decision based on traffic volume and delay being experienced by the vehicles on differenct approaches.
It should be Y = Q/S in the table of 1st step
Oh yes, But calculations are correct. Thanks
I used to believe that traffic signal design was simple, but after reading Roess, Prassas, and Mcshane's book (Traffic Engineering), I realised that it is a very broad topic.
Yes, Mr. Singh. Traffic Engineering apparently looks simple but it is actually not so
From where did yo get the equation for exclusive right turn saturation flow rate sir?
This is given in British method. Can be found in the book on Traffic engineering by C. A. O'Flahrety.
Sir,
When I worked out a practical case, total y exceeds 1. is that possible? can you please explain in detail?
In a normal case, total Y does not exceed 1. If it exceeds it suggests that traffic signal cannot take the traffic load at junction. In that case, look at individual values of yi and see which arm of the intersection needs to be widened to increase Si. Alternatively, go for overpass or undepass for major road.
Thank you sir
Thank you for your nice explanation, sir, I have one doubt regarding the saturation flow, as per IRC 93 1985 page no 37 S=525W is valid only for 5.5m to 18m width, for lesser width of the road there are some values given in page no 38, but in your example 1 you have taken 525W for lesser widths, could you please let me know why did you take that?
Yes, you are correct. These values of S should be taken as per table given in IRC code, page 38.
You may redo this example and see the difference
Thanks
Thanks !
Welcome!
Very nice sir
Thanks. Keep watching
Sir Can you please explain difference between phase and interval ?
Phase is the position of the signal during which it shows a particular indication, like green phase or red phase. interval is the time duration in seconds, a signal indication remains unaltered.
Can u sir provide me the pdf copy for this lecture
Sure.
@@SatishIITR where can I download it .. if u have any link plz!!
will create and let u know@@Tazawad1
see if this link takes you the folder to download
1drv.ms/b/s!AkvH20aIdaLDihlh9MiMhXL5cVjR?e=i0KUpl @@Tazawad1
drive.google.com/file/d/1l-ZF5XB7xGba9FlincHODVAQ2GcsjwK7/view?usp=drive_link @@Tazawad1
Sir , I request you to please 🙏🙏 provide me " Indo HCM 2018 " and HCM 2016 code book pdf .
soft copies of these documents are now available. These are copyrighted documents.
Sir in example 1 in think Y=Q/S not Y=S/Q.
Yes, you are correct. It is written as S/Q, but calculated as Q/S only. Thanks
বাচায় দিসেন ভাই
would appreciate comments in English