Glad that was helpful for you! I assume you've seen this playlist, but if not, here is more content for the PE exam: ruclips.net/p/PLQ2tBMRKXROYAW4OnuL0GjVgfdrtBp9Pp And, here are additional transportation engineering playlists: sites.google.com/ncsu.edu/daniel-findley/educational-resources
Redoing this problem has allowed me to discover a shortcut. If SMS = TMS - TMS*2%. Then, if TMS = 45 mph the only answer available is (a). This is a major shortcut to save time. Check it out.
This will definitely be useful to eliminate some of the answers (possibly multiple). However, the difference is not always 2%, but it is true that the TMS is always greater than or equal to the SMS - which can be helpful in a multiple-choice question situation.
if calculated answer = 44.69 mph why are you going with final answer "a" = 44.5 mph instead of "b" = 45 mph. is this because there is a smaller different between our answer and "a" than there is between our answer and "b"; or is there a better, conceptual reason for this? a reason, perhaps, related to safety or rounding rule of thumb in this type of a problem ?
Yes, that's correct - it's closer to 44.5 mph, so that's why I selected "a". For the exam, I hope they won't put an answer choice so close to the midpoint, but it's possible.
@@thomassbahtu1503 No, I do think there is some conceptual logic in selecting "b". However, in the way I worded the question, I believe "a" is the better choice. I specifically worded it as "is most nearly", based on that wording, 44.69 is more near 44.5 than 45. It's also possible that "minimum" or "maximum" can be integrated into problems that would change that logic. For instance, "the maximum......is most nearly:" or "the minimum......is most nearly:".
![Speed / Density / Flow Relationships | NCEES Civil Engineering PE Exam [Section 5.1.1.4; 5.1.2]](http://i.ytimg.com/vi/DmrmtYLabrI/mqdefault.jpg)
![Speed / Density / Flow Relationships | NCEES Civil Engineering PE Exam [Section 5.1.1.4; 5.1.2]](/img/tr.png)
![Lane Occupancy for Freeway Surveillance | NCEES Civil Engineering PE Exam [Section 5.1.1.3]](http://i.ytimg.com/vi/1LN7stZ2rs4/mqdefault.jpg)
![Dilemma Zone for Traffic Signal Timing and Design | NCEES Civil Engineering PE Exam [Section 5.4.1]](http://i.ytimg.com/vi/ArACFteSS_Q/mqdefault.jpg)
![Acceleration (Constant) | NCEES Civil Engineering PE Exam [Section 5.1.4.1] | Accident Analysis](/img/1.gif)
Simple explanations of these equations do wonders! I was quite confused but now much more clear. Hope to see more content from you!
Glad that was helpful for you! I assume you've seen this playlist, but if not, here is more content for the PE exam: ruclips.net/p/PLQ2tBMRKXROYAW4OnuL0GjVgfdrtBp9Pp
And, here are additional transportation engineering playlists:
sites.google.com/ncsu.edu/daniel-findley/educational-resources
@@FindleyDaniel Thank you so much! Will be looking forward to seeing these additional references!
Redoing this problem has allowed me to discover a shortcut. If SMS = TMS - TMS*2%. Then, if TMS = 45 mph the only answer available is (a). This is a major shortcut to save time. Check it out.
This will definitely be useful to eliminate some of the answers (possibly multiple). However, the difference is not always 2%, but it is true that the TMS is always greater than or equal to the SMS - which can be helpful in a multiple-choice question situation.
if calculated answer = 44.69 mph why are you going with final answer "a" = 44.5 mph instead of "b" = 45 mph. is this because there is a smaller different between our answer and "a" than there is between our answer and "b"; or is there a better, conceptual reason for this? a reason, perhaps, related to safety or rounding rule of thumb in this type of a problem ?
Yes, that's correct - it's closer to 44.5 mph, so that's why I selected "a". For the exam, I hope they won't put an answer choice so close to the midpoint, but it's possible.
@@FindleyDaniel thank for your input!
@@FindleyDaniel Does it mean there is no conceptual logic to choose"b" Instead of "a". Mathematically rounding it would make sense be 45 best answer.
@@thomassbahtu1503 No, I do think there is some conceptual logic in selecting "b". However, in the way I worded the question, I believe "a" is the better choice. I specifically worded it as "is most nearly", based on that wording, 44.69 is more near 44.5 than 45.
It's also possible that "minimum" or "maximum" can be integrated into problems that would change that logic. For instance, "the maximum......is most nearly:" or "the minimum......is most nearly:".
ncees hb 1.1, page 265.