1. Traffic volume study during peak hours.

0202395

Phase 1:GaR

025656895

Phase 2:RGaR

07090 9395

Phase 3:RGaR

DATA ANALYSISTABLE 1

Approach (Movement): SRI GADING (RIGHT-TURN) Lane: 1Day/Date: 28/04/2015 Time: 1315-1415 Weather: ____________TimeTraffic Count

Vehicle Class

1234

1315 -1330105042

1331-1345103672

1346-1400124971

1401-141595944

Vehicle ClassTraffic Volume(veh/hour)p.c.u.Factorp.c.u.

Class 1 (Motorcycles)410.3313.53

Class 2 (Cars)1941.00194.00

Class 3 (Vans & Medium Trucks)221.7538.50

Class 4 (Heavy Trucks & Buses)92.2520.25

Total ()266.28

Note: p.c.u. = passenger car unit

TABLE 2

Approach (Movement): SRI GADING (THROUGH) Lane: 2Day/Date: 28/04/2015 Time: 1315-1415 Weather: ____________TimeTraffic Count

Vehicle Class

1234

1315 -133091652317

1331-134571762412

1346-140010183238

1401-141591792915

Vehicle ClassTraffic Volume(veh/hour)p.c.u.Factorp.c.u.

Class 1 (Motorcycles)350.3311.55

Class 2 (Cars)7011.00701.00

Class 3 (Vans & Medium Trucks)991.75173.25

Class 4 (Heavy Trucks & Buses)522.25117.00

Total ()1002.80

Note: p.c.u. = passenger car unit

TABLE 3

Approach (Movement): SRI GADING (THROUGH) Lane: 3Day/Date: 28/04/2015 Time: 1315-1415 Weather: ____________TimeTraffic Count

Vehicle Class

1234

1315 -1330425353

1331-13453875114

1346-1400365397

1401-14152768118

Vehicle ClassTraffic Volume(veh/hour)p.c.u.Factorp.c.u.

Class 1 (Motorcycles)1430.3347.19

Class 2 (Cars)2491.00249.00

Class 3 (Vans & Medium Trucks)361.7563.00

Class 4 (Heavy Trucks & Buses)222.2549.50

Total ()408.69

Note: p.c.u. = passenger car unit

TABLE 4

Approach (Movement): BATU PAHAT (THROUGH) Lane: 1Day/Date: 28/04/2015 Time: 1315-1415 Weather: ____________TimeTraffic Count

Vehicle Class

1234

1315 -1330711493

1331-13459102114

1346-140012112161

1401-1415414362

Vehicle ClassTraffic Volume(veh/hour)p.c.u.Factorp.c.u.

Class 1 (Motorcycles)320.3310.55

Class 2 (Cars)4711.00471.00

Class 3 (Vans & Medium Trucks)421.7573.50

Class 4 (Heavy Trucks & Buses)102.2522.50

Total ()577.55

Note: p.c.u. = passenger car unit

TABLE 5

Approach (Movement): BATU PAHAT (THROUGH) Lane: 2Day/Date: 28/04/2015 Time: 1315-1415 Weather: ____________TimeTraffic Count

Vehicle Class

1234

1315 -1330101151214

1331-134513112183

1346-140012115227

1401-141551112015

Vehicle ClassTraffic Volume(veh/hour)p.c.u.Factorp.c.u.

Class 1 (Motorcycles)400.3313.20

Class 2 (Cars)4531.00453.00

Class 3 (Vans & Medium Trucks)671.75117.25

Class 4 (Heavy Trucks & Buses)392.2587.75

Total ()671.20

Note: p.c.u. = passenger car unit

TABLE 6

Approach (Movement): BATU PAHAT (THROUGH) Lane: 3Day/Date: 28/04/2015 Time: 1315-1415 Weather: ____________TimeTraffic Count

Vehicle Class

1234

1315 -13304852812

1331-134528621313

1346-1400375089

1401-141536491816

Vehicle ClassTraffic Volume(veh/hour)p.c.u.Factorp.c.u.

Class 1 (Motorcycles)1490.3349.17

Class 2 (Cars)2131.00213.00

Class 3 (Vans & Medium Trucks)471.7582.25

Class 4 (Heavy Trucks & Buses)502.25112.50

Total ()456.92

Note: p.c.u. = passenger car unit

TABLE 7

Approach (Movement): BATU PAHAT (LEFT -TURN) Lane: 4Day/Date: 28/04/2015 Time: 1315-1415 Weather: ____________TimeTraffic Count

Vehicle Class

1234

1315 -133010431-

1331-13458548-

1346-140094521

1401-141585181

Vehicle ClassTraffic Volume(veh/hour)p.c.u.Factorp.c.u.

Class 1 (Motorcycles)350.3311.55

Class 2 (Cars)1931.00193.00

Class 3 (Vans & Medium Trucks)191.7533.25

Class 4 (Heavy Trucks & Buses)22.256.75

Total ()244.55

Note: p.c.u. = passenger car unit

TABLE 8

Approach (Movement): BP MALL (RIGHT/LEFT-TURN) Lane: 1Day/Date: 28/04/2015 Time: 1315-1415 Weather: ____________TimeTraffic Count

Vehicle Class

1234

1315 -1330123151

1331-134593761

1346-1400134751

1401-141511615-

Vehicle ClassTraffic Volume(veh/hour)p.c.u.Factorp.c.u.

Class 1 (Motorcycles)450.3314.85

Class 2 (Cars)1761.00176.00

Class 3 (Vans & Medium Trucks)211.7536.75

Class 4 (Heavy Trucks & Buses)32.256.75

Total ()234.35

Note: p.c.u. = passenger car unit

TABLE 9

Approach (Movement): BP MALL (LEFT -TURN) Lane: 2Day/Date: 28/04/2015 Time: 1315-1415 Weather: ____________TimeTraffic Count

Vehicle Class

1234

1315 -133092352

1331-13457275-

1346-1400328--

1401-1415834-1

Vehicle ClassTraffic Volume(veh/hour)p.c.u.Factorp.c.u.

Class 1 (Motorcycles)270.338.91

Class 2 (Cars)1121.00112.00

Class 3 (Vans & Medium Trucks)101.7517.50

Class 4 (Heavy Trucks & Buses)32.256.75

Total ()145.16

Note: p.c.u. = passenger car unit

2. Determine the capacity and level of service

Phase 1Period cycle time, C=95 sGreen time, g=65 sAmber time, a=3 s

Phase 2Period cycle time, C=95 sGreen time, g=20 sAmber time, a=3 s

Phase 3Period cycle time, C=95 sGreen time, g=20 sAmber time, a=3 s

PhaseIIIIII

Movement

C (sec)959595959595959595

g (sec)656565656520202020

= g/C0.680.680.680.680.680.210.210.210.21

S (pcu/hr)188518851885188518851435.24188518851359.34

q (pcu/hr)1002.80408.69577.55671.20456.92266.281002.80408.69234.35

qs(pcu/sec)0.2790.1140.1600.1860.1290.0740.2790.1140.065

x = q/S0.780.320.450.520.360.882.531.030.82

d (sec)1.493.933.453.123.811.18-8.13-0.351.76

LOSAAAAAAAAA

3. Propose improvements to the design of the intersection and the traffic signal

Table 10PhaseIIIIII

Movement

W (m)3.503.503.503.503.503.503.503.505.25

S (pcu/hr188518851885188518851435.24188518851359.34

q (pcu/hr)1002.80408.69577.55671.20456.92266.281002.80408.69234.35

y = q/S0.530.220.310.360.240.190.530.220.17

y0.530.530.17

Key:S = Sri Gading Approach; B = Batu Pahat Approach; M = BP MALL Approach T = Through; R = Right-turn; L= Left-turn 1 = Lane 1; 2 = Lane 2; 3 = Lane 3; 4 = Lane 4

Since so, geometrics of the intersection need to upgrade to increase capacity.

Geometrics need to upgrade with simple junction with one lane not interrupt flow. This geometrics upgrade already use in Malaysia example at junction Jalan Daya, Johor Bahru show in map 1 and picture 1,

Map 1 : location Jalan daya, Johor Bahru

Picture 1: Junction at Jalan Daya, Johor bahru

Layout below shows new geometrics at BP Mall junction.

Table 11PhaseIIIIIII

Movement

W (m)3.503.503.503.503.503.505.25

S (pcu/hr18851885188518851435.2418851359.34

q (pcu/hr)408.69577.55671.20456.92266.28408.69234.35

y = q/S0.220.310.360.240.190.220.17

y0.360.220.17

Key:S = Sri Gading Approach; B = Batu Pahat Approach; M = BP MALL Approach T = Through; R = Right-turn; L= Left-turn 1 = Lane 1; 2 = Lane 2; 3 = Lane 3; 4 = Lane 4

Amber time, a=3 secAll- red period, R=2 secIntergreen time, I=a+R=3+2=5 secDriver reaction time, =2 secNumber of phases, n = 3Total lost time, L = n(I a) + nl = 3(5-3)+(3)(2)=12 secPractical capacity, Yprac = 0.9 0.0075L = 0.9 0.0075(12) = 0.81Reserve capacity, RC = 100% x ( Yprac Y ) / Y = 100(0.81-0.75)/0.75=8 sec

Determination of Optimum Cycle Time, Optimum cycle time, Design we can between 45 s to 120 s, although an absolute minimum of 25 s can be used.For simplicity, take design

Determination of Signal SettingTotal effective green time = = Effective green time,

+ + = 40 + 24 + 19 = 83 s ok

Actual green time, G=g + + R

Controller setting time, K= G a R

The timing schedule is shown below 0394295

Phase 1:GaR

044677095

Phase 2:RGaR

07290 9395

Phase 3:RGaR