Question No. 1 (12 points)

Transcription

1 Fnal Exam (3 rd Year Cvl) ransportaton lannng & rac Engneerng Date: uesday 4 June 20 otal Grade: 00 onts me: 09:30am 2:30pm Instructor: Dr. Mostaa Abo-Hashema, roessor Notes:. Answer all questons and assume any reasonable data you may need. 2. No ads other than calculators. here are three addtonal pages or ables and Charts 3. Answer should be neat, specc, and n order 4. Start each queston n a new page. Queston No. (2 ponts) For each o the ollowng statements, choose the correct a or b or c to complete the statement: DO NO EWIE HE SAEMEN JUS SELEC/WIEDOWN a or b or c COESONDING O EACH NUMBE. o study the movements between orgns and destnatons, data collecton procedure must be made. he selecton o data collecton technque depends on a. trp purpose b. study purpose c. populaton 2. he study o transportaton movements between orgns and destnatons dentes a. populaton n each zone b. number o rps between zones c. network perormance 3. In the nal stage o transportaton plannng or a specc cty, assessment has been made to very the desred purposes have been acheved or not. I the answer was NO, what would you suggest n the next step? a. Change the proposed network b. Change the prncpals purposes c. Change the trac volume nsde the cty n the uture 4. ercent o avalable opportuntes to the number o workers s consdered man ndcator n the transportaton plannng. I ths percent s greater than n a specc area, that means ths area s a. educatonal b. hgh populaton c. attracted to trps age o 6

2 . Model calbraton means a. hypothesze a mathematcal orm o the relatonshp b. to determne how well the calbrated model explans the data c. to estmate the parameters o the model based on the data 6. he purely resdental zone has a. no attracton trps b. no producton trps c. both attracton and producton trps 7. Avalablty o parkng and transt nluence a. rp Dstrbuton b. Mode Choce c. rp Assgnment 8. he 30 th hghest hourly volume s a. more than 29 hours wthn the year b. more than 3 hours wthn the year. c. Less than 3 hours wthn the year 9. Capacty s reerred to a. maxmum speed b. maxmum densty c. maxmum low rate 0. IEV me s a. eacton and ercepton me b. Dstance between a vehcle and obstructon c. me to pass a slow vehcle. Whch o the ollowng statements s alse as related to transportaton plannng a. rp dstrbuton always ollows trp generaton b. Modal choce allocaton always precedes trac assgnment c. Network mnmum path algorthms are part o modal choce allocaton 2. he tme mean speed s a. less than space mean speed b. greater than the space mean speed c. equal to space mean speed age 2 o 6

3 Queston No. 2 (8 ponts) [rp Dstrbuton] Consder a study area consstng o our zones. he observed base-year productons, attractveness and trp-nterchange volumes are shown below. he base-year nterzonal mpedances are speced n terms o travel tme n mnutes and are also shown below. It s requred to calbrate the gravty model to nd the value o c to reproduce the observed trp-nterchange volumes, assumng that K s the same unt value or all zones. One-teraton only s requred. rp roductons and Attractveness or a Four-Zone Study Area Zone rp roductons Attractveness Observed rp-nterchange Volumes O D Base-year nterzonal mpedances (ravel me, mn) Zone Queston No. 3 ( ponts) [Modal Splt] Gven the utlty expresson: U k = a k -0.04X -0.03X X X 4 where, X : Access plus egress tme (mns) X 2 : watng tme (mns) X 3 : rdng tme (mns) X 4 : out-o-pocket cost (cents) age 3 o 6

4 Apply the logt model to calculate the market shares and the are-box revenue o the ollowng travel modes: Attrbute X X 2 X 3 X 4 o Automoble o Bus Mode specc constants, a k, (Automoble: -0.2, Bus: -0.6) = 000 person trps per day (uture or target year) I apd ranst () s ntroduced to the cty (n addton to the automoble and publc bus), what s the eect on the market shares and the are-box revenue? Attrbute X X2 X3 X he mode specc constant s -0.4 Queston No. 4 (0 ponts) [rp Assgnment] Assgn the O/D matrx shown n the below table to the network o the three-zone area shown n the below Fgure usng All-Or-Nothng method. he numbers shown n the Fgure are the travel tme along these lnks, expressed n mnutes. O D A B C A B C A j B A C 7 Note that: All lnks are two-way lnk except two lnks as shown n the gure by the arrow. Fnal Assgned Network should be drawn. Show your calculaton steps. age 4 o 6

5 Queston No. (2 ponts) [rac Operatons] A. In 200, a trac volume study was perormed on a rural road to determne the varaton n hourly trac volumes throughout the year. he collected data were analyzed to determne the desgn hourly volume (D), whch ound to be 270 vph. Estmate the D or the year 2030, trac-orecastng shows that about 4% o the current trac volume wll be added to the road as developed and generated trac n the next 20 years. In addton, consder an annual growth rate o 2.% n the car ownershp B. Fve cars are travelng a 0-eet secton o a road at constant speed o 0, 60, 6, 7, and 79 t/sec, calculate the average spot speed and the space mean speed or ths group o vehcles C. I a trac low o 00 vehcle per hour was measured, what would be the average headway between these vehcles? Queston No. 6 (8 ponts) [Freeway: Capacty & LOS] An exstng sx-lane reeway has the ollowng normaton: Sx lanes Level terran 0 percent trucks HF = 0.9 FFS = 6 mph (measured n eld) Growng urban area,000-vph volume (n one drecton) (exstng,.e. current),600-vph volume (n one drecton, at the end o 3 years) Beyond 3 years, trac grows at 4 % per year What s the current LOS durng peak perods? What LOS wll occur at the end o 3 years (.e. n 3 years)? o avod the condton o demand exceedng capacty, when should a ourth lane be added n each drecton? Note that: Assume that percent trucks and HF reman constant over tme. Assume no buses and no Vs. Assume amlar drver populaton gven the reeway type and area type. age o 6

6 Queston No. 7 ( ponts) [wo-way Hghway: Capacty & LOS] A rural two-lane hghway n mountanous terran has a 6 percent grade o 2 mles. Other relevant characterstcs nclude: a. oadway characterstcs: 2-t lanes; 8-t shoulders; 60 percent no passng zones. b. rac characterstcs: 70/30 drectonal splt; 2 percent trucks; 7 percent recreatonal vehcles; percent buses; 80 percent passenger cars; HF = 0.8. What s the maxmum volume, whch can be accommodated on the grade at an average upgrade speed o 40 mph? Q A F n j j j A F K K F W c p ( k) eu k e x U x n D AGF D D uture now now V p V HF * N * * ) ) FFS v SF 2800 * * * * FFS Lw Lc n ID d w c v SF 2800 * * d * w * g * I 0.02( E E0 ) c ) ) B B ) g I E ) (0.2 )( ) / E age 6 o 6