SECTION A : 40 MARKS BAHAGIAN A : 40 MARKAH INSTRUCTION: This section consists of TEN (10) short questions. Answer ALL questions.

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1 SECTION A : 40 MARKS BAHAGIAN A : 40 MARKAH INSTRUCTION: This section consists of TEN (10) short questions. Answer ALL questions. ARAHAN: Bahagian ini mengandungi SEPULUH (10) soalan pendek. Jawab SEMUA soalan. C1 QUESTION 1 SOALAN 1 State FOUR (4) importance of transportation. Nyatakan EMPAT (4) kepentingan pengangkutan. QUESTION 2 SOALAN 2 Explain FOUR (4) types of transportation. Terangkan EMPAT (4) jenis pengangkutan. C1 QUESTION 3 SOALAN 3 Identify FOUR (4) types of circular curves in geometric design. Kenalpasti EMPAT (4) jenis lengkuk bulat di dalam rekabentuk geometri. 2 SULIT

2 QUESTION 4 SOALAN 4 A lorry is travelling at 120 km/hr. The friction coefficient is and the reaction time is 2.5 second. Determine the stopping sight distance (SSD). Sebuah lori bergerak pada kelajuan 120 km/j. Pekali geseran yang diberi adalah dan masa tindakbalas adalah 2.5 saat. Tentukan jarak penglihatan berhenti lori tersebut. C3 QUESTION 5 SOALAN 5 Horizontal alignment for linear transportation facilities such as highways and railways consists of horizontal tangents, circular curves, and possibly transition curves. In the case of highways, a transition curve is not always used. Sketch TWO (2) figures of horizontal alignments with and without transition curves. C1 Penjajaran mendatar adalah untuk kemudahan pengangkutan linear seperti lebuh raya dan landasan kereta api terdiri daripada tangen mendatar, lengkung bulat dan juga lengkung peralihan. Dalam kes lebuh raya, lengkung peralihan tidak selalu digunakan. Lakarkan DUA (2) rajah berkaitan penjajaran mendatar dengan dan tanpa lengkung peralihan. QUESTION 6 SOALAN 6 Define the terms as follows: Takrifkan terma-terma berikut: i. Saturation flow Aliran tepu ii. Cycle time Kitaran masa 3 SULIT

3 SULIT QUESTION 7 SOALAN 7 Explain the terms as follows: i) Actual Green Time ii) Effective Green Time. Terangkan : i) Masa Hijau Sebenar ii) Masa Hijau Efektif. C3 QUESTION 8 SOALAN 8 Illustrate TWO (2) types of Interchange. Gambarkan DUA (2) jenis persimpangan bertingkat. QUESTION 9 SOALAN 9 Identify FOUR (4) purposes of traffic management. Kenalpasti FOUR (4) tujuan pengurusan lalu lintas. QUESTION 10 SOALAN 10 Identify FOUR (4) purposes of KEJARA and KESARA System. Kenalpasti EMPAT (4) tujuan Sistem KEJARA dan KESARA. 4 SULIT

4 SECTION B : 60 MARKS BAHAGIAN B : 60 MARKAH INSTRUCTION: This section consists of FOUR (4) structured questions. Answer THREE (3) questions only. ARAHAN: Bahagian ini mengandungi EMPAT (4) soalan berstruktur. Jawab TIGA (3) soalan sahaja. QUESTION 1 SOALAN 1 (a) Identify why transportation planning is important. Kenalpasti mengapa perancangan pengangkutan adalah penting. [8 marks] [8 markah] C4 (b) Explain types of trips measured in a survey area when conducting Origin-Destination Survey. Show a diagram for each trip. Terangkan jenis perjalanan yang diukur dalam kawasan kajian bila melaksanakan kaedah Asal Tujuan. Lakarkan rajah bagi setiap perjalanan. C5 (c) You are going to conduct an OD survey using roadside interview method. Constructs FOUR (4) main questions for the interview. Anda akan melaksanakan kajian OD dengan menggunakan kaedah temuduga di tepi jalan. Gubal EMPAT(4) soalan utama untuk temuduga tersebut. 5 SULIT

5 QUESTION 2 SOALAN 2 (a) Discuss TWO (2) types of sight distance in geometrical alignment. Bincangkan DUA (2) jenis jarak penglihatan dalam penjajaran geometri. C3 (b) A vertical crest curve on a single carriageway road with a design speed of 85 km/hr is to be built in order to join an ascending grade of 4% with descending grade of 2.5%. The motorist s eye height is assumed to be 1.05m while the object height is assumed to be 0.26m. Calculate the length of vertical curve. Given SSD = 160m, H 1 =0.92m and H 2 =0.15m. Satu lengkung puncak tegak di atas jalan laluan kenderaan tunggal dengan kelajuan reka bentuk 85 km / jam akan dibina untuk menyertai gred naik sebanyak 4% dengan gred menurun sebanyak 2.5%. Ketinggian mata pemandu adalah diandaikan sebagai 1.05m manakala ketinggian objek itu diambil alih menjadi 0.26m. Kira panjang lengkung menegak. Diberi SSD=160m, H 1 =0.92m and H 2 =0.15m. C5 (c) Srijaya Company Sdn. Bhd. has been awarded with a contract to build roads with a speed design of 168 km/h with the angle 41. The superelevation and friction coefficient is 11 % and 34% with the points of intersection of tangents is in station Estimate: Syarikat Srivijaya Sdn.Bhd telah dianugerahkan kontrak untuk membina jalan raya dengan laju rekabentuk 168 km / h dengan sudut 41. Ketinggian dan pekali geseran adalah 11% dan 34% dengan titik persilangan tangen adalah di stesen Anggarkan: 6 SULIT

6 i. The radius of circular curve Jejari lengkung bulat ii. The length of the curve Panjang lengkung iii. TC Station Stesen TC iv CT Station Stesen CT [10 marks] [10 markah] QUESTION 3 SOALAN 3 (a) Explain the following terms: Terangkan istilah-istilah berikut: i. Lost time Masa hilang ii. Phase Fasa iii. Intergreen interval Masa Antara Hijau C5 (b) A fixed time 2-phase signal is to be provided at a four-legs intersection. The design hour traffic and saturation flow are as in Table B3: Lampu isyarat 2 fasa hendaklah disediakan di satu persimpangan empat. Jam rekabentuk bagi lalulintas dan aliran tepu adalah seperti Jadual B3: 7 SULIT

7 Table B3 : Design Hour Traffic and Saturation Flow Jadual B3: Jam Rekabentuk Bagi Lalulintas dan Aliran Tepu Branch Flow / Cabang Aliran North / South / East / West / Utara Selatan Timur Barat Traffic Flow, Q (pcu/hour) / Aliran Trafik,Q (ukp/jam) Saturated Flow, S (pcu/hour) / Aliran Tepuan,S (ukp/jam) The lost time per phase due to starting delays in 2 seconds and the intergreen interval is 5 seconds. Assume Amber Time = 3 seconds. Estimate: Masa hilang setiap fasa yang disebabkan oleh kelengahan permulaan adalah 2 saat dan masa antara hijau 5 saat. Andaikan masa kuning=3 saat. Anggarkan: i. Optimum cycle time Masa Kitar Optima ii. Actual Green Time Masa Hijau Sebenar [14 marks] [14 markah] QUESTION 4 SOALAN 4 (a) Identify FOUR (4) Acts related to road system in Malaysia. Kenalpasti EMPAT (4) Akta yang terlibat dengan sistem jalanraya di Malaysia. 8 SULIT

8 C4 (b) Explain TWO (2) main factors that contribute to road accidents. Jelaskan DUA (2) faktor utama yang menyumbang kepada kemalangan jalanraya. C4 (c) Explain FIVE (5) effects of noise pollution caused by traffic to human. Jelaskan secara terperinci LIMA (5) kesan pencemaran bunyi disebabkan trafik terhadap manusia. [10 marks] [10 markah] SOALAN TAMAT 9 SULIT

9 LAMPIRAN FORMULA CC503 : TRAFFIC ENGINEERING 1. GEOMETRIC DESIGN Geometrical Alignment a. d 1 = 0.28tV b. d 2 = V2 254f c. d b = d 1 + d 2 d. d u = V 2 254(f G) e. T = R tan ( 2 ) or ord t = f. AB = 2 (R sin ( 2 )) g. E = R (sek ( 2 1)) h. M = R (1 cos ( 2 )) i. L = 100 D j. D = R k. R = v2 gf l. m. v 2 gr V 2 127R = e + f = e + f d 2 = v2 2fg V 2 254(f+G) Horizontal Alignment Case S < L a. M = R [1 cos ( 28.65S R b. S = R cos 1 ( R M R ) c. R = S2 8M Case S > L d. M = L (2S L) 8R e. S = 8MR 2L + L 2 f. R = L(2S L) 8M Vertical Alignment a. Y m = e = AL 8 Case S < L b. L = c. L = Case S > L AS 2 2( h 1 + h 2 ) 2 NS 2 2( h 1 + h 2 ) 2 or = AS 8 d. L = 2S [ 2( h 1+ h 2 ) 2 ] 2 e. L = 2S [ 8(h+1 2 (h 1+h 2 )) ] N A )] 2. INTERSECTION DESIGN a. S = 525 W or S = 160 W b. y = Q S c. L = l + (I k) d. C o = 1.5L+5 1 Y e. g phase = (C o L)( y phase ) Y G phase = g phase + l k 10 SULIT

INSTRUCTION: This section consists of TEN (10) structure questions. Answer ALL questions.

SECTION A : 40 MARKS BAHAGIAN A : 40 MARKAH INSTRUCTION: This section consists of TEN (10) structure questions. Answer ALL questions. ARAHAN: Bahagian ini mengandungi SEPULUH (10) soalan struktur. Jawab