TP vs TE

Dont get any wierd ideas! The context here is my favorite topic: Transportation Planning. Ever got into this conversation between a transportation engineer and a transportation planner. It is amusing, at the same time amazing to hear the exchange of jargon. But the plain truth is that the engineers always have the upper hand because they produce numbers! So who can question numerology to a bunch of literature and a large map which looks like the advertisement of 'asian paints', that the planners come up with? Here is an excerpt, indicative of the linguistic skills that each possess.
A discussion over a cup of coffee; one can feel the energy through the caffeine!

TP: So, this is the site we are dealing with, located adjoining this minor arterial.According to the thoroughfare plan, we should be upgrading it to a major arterial and providing bike lanes.
TE: Is that a recommendation? Have you conducted a 24 hr count? Whats the estimated AADT? Do we have a breakup of the modal mix?
(at this point of time the planner feels he has an upper hand since he knows what these terminologies mean!!)

TP: eh...well, we have conducted a traffic count at the major interchange and the estimated volume is 4523 AADT.
(one would think, with a number like that, you would have to be fairly accurate)
TE: I would like to have a look at the excel sheet and calculations. I feel the volumes are much higher. Also please do arrange to send me the projected year volumes and the memo which provided information on the retail development, with the TIA.

TP: Sure thing. I have reasons to believe that the Impact Analysis would need to be conducted again, ITE manual does not seem to provide with a reliable number for cross analysis.
TE: Are you kidding me? That reference book is the only reliable source of data. All Transportation engineers abide by that. It is as good as the Bible, Quran or the Gita.
(The planner being an indian was quick to identify the 'gita' with the 'bhagwad gita')

TP: Allright. But what about the model? Future land use considerations have not been taken into account. Obviously the trip generation matrix is wrong.
TE: My dear friend. Emme2 is the best of the lot.
(if one had not taken a course in transportation modelling, that would have hit you like a rock...what 2? which 2....)

TP: Just how in this ever wideworld do you reason with the gibberish? We are supposed to take it on facevalue? The output of any model is going to be based on the input. How do i vouch for the input characters?
(this is the time when you feel victorious...the heart is jumping with joy....you are just about to score one point over your opposition after a long battle.
Not for long...he has the final word)

TE: Elementary!!....Its called "ENGINEERING JUDGEMENT".