LAB : 3 LAB : Running Speed NO. TITLE LEVEL OF OPENNESS : Level CLASS : EC110 5F GROUP LEADER: STUDENT NO: 2014886638 GROUP MEMBERS NO. NA NAME STUDENT NO. 1. Mo!"!d #$$ Mi%$! &in Mod #'! 2014886638 2. S(!)!*i &in*i +!%'ino 2014864582 3. ,!%i-! #$$!*i &in*i ,!"%i 2014230238 4. .u% /" /"i%! / /il! &i &in*i / / d .! .!'i% 2014410008 5. S ASSESSMENT OF THE LAB ACTIVITIES NO. ELEMENT TO ASSESS
1 2 3 4 5 6 ; 8 < 10 11 12
DAT DAT E
: 14 TH JULY JULY 2016
SIGNATUR E
STUDENT 1 2 3
INDIVIDUAL INDIVIDUAL IN-LAB ACTIVITIES U.CTU/L#T#Y #SC #SC# #L# L#.E .E RE RESS SS CE CES/ S/FE FETY TY SHE SHES SS/ S/FE FETY TY RE7UL/T#.S 9.+LE7E . E. E.E L/&R/TRY L/&R/TRY GROUP IN-LAB ACTIVITIES LE/ERSH# S9#LL CMMU.#C/T#. R7/.#S/T#.:TE/M+R9 LAB REPORT #.TRUCT#. &/S#C C.CETS SUMM/RY F RCEURES: METHS /./L /./LYS YS#S #S /. /. #.TE #.TER RRE RET T/T#. T#. F /T/ #SCUSS#. F RESULT C.CLUS#.
LECTURER’S SIGNATURE:
REMARKS:
UiTM !!ng Faculty of Civil
ECG 354 – HIGHA! ENGINEERING
ECG 354 – HIGHA! ENGINEERING
THE REPORT MUST BE SUBMITTED 1 WEEK AFTER THE COMPLETION OF THE LAB.
REMAR
4
5
INTRODUCTION
In this laboratory activity, running speed is determined by dividing the total distance by the total running time (only the time vehicle is in motion) for the route. That is, all stop-time delays are excluded. Running speed studies are conducted over a specified route for determining quality of service beteen alternate routes. In this laboratory activity, the traffic pattern at a distance of !." #ilometers beteen to points is identify by dividing the total distance ith the total running time ta#en. OBJECTIVE
The ob$ective of the test is% To conduct the Running &peed &tudy and evaluate the quality of traffic movement along a route and determine the traffic delays by using a moving test vehicle. THEORETICAL BACKGROUND
In this laboratory, students ill use 'oving ehicle Technique to conduct the Running &peed study. The travel time and delay data of 'oving ehicle Technique enables the traffic engineer to define problem locations to design improvements that may be essential to increase operational efficiency and safety. In this technique, the driver and observer ma#es a round trip on a test section li#e the one shon belo, here it is assumed that the road runs eastard to section -, and then turn the vehicle around and drives estard to section *-* again. +e'* =
=
Apparatus
i.
+ test vehicle, driver, observers
ii.
To top atch
iii.
istance measurement equipmentodometer
iv.
To field forms.
Y
E!'*
Y
PROCEDURES
i. The study area as defined by selected all control points before begin the study. ii. The time periods recommended for studies are +.' and .' pea# hours as ell as off pea# hours. iii. The test car shall be travelling at the average speed of all vehicles. iv. Time for stop delay ere counted at the $unction along the route. v. The observers ma#e a round trip on a test section, and then turned the vehicle around and drove bac# again for at least four (/)times in this technique. 1.1 Test Requiree!t"C#!$iti#!
I. II.
This study should be conducted during average or typical ee#day traffic conditions. This study should be made during reasonable good eather so that unusual condition do not influence the study +lso, since crash or other unusual delays ill produce erroneous results, any runs made during such an occurrence should be terminated and another run conducted.
DATA ANAL%SIS
Ru!
East&ar$ $ista!'e
Travel Time, t! 0o. of vehicles 0o. of vehicles 0o. of vehicles (min) travelling in overtoo# test overta#en by opposite vehicle, *1 test vehicle, *2 direction, *
1
4.5!%51
1!2
Ru!
!
/1.62
(est&ar$ $ista!'e
Travel Time, tf (min)
1
4
Total delay 3 stoppage time (secs.)
4.!!%5!
CALCULATIONS
0o. of vehicles 0o. of vehicles 0o. of vehicles travelling in overtoo# test overta#en test opposite vehicle, 1 vehicle, 2 direction, *
77
1
1
Total delay 3 stoppage time (secs.)
2".84
E"#$%"&' *o > 8?30 "in : 60 > 0?1383 % *% > 8?00 "in :60 > 0?1333 % 1? T%!@A volu"e ve: % x + y q= t r + t o
¿
+8 0.138 + 0.133 102
¿ 405.90 veh / hr 2? /ve%!ge Bou%ne( *i"e * > *o (: > 0?138 8:405?< > 0?118 % 3? /ve%!ge %unning *i"e total delay /ve? del!( > 3600 41.72
>
3600
> 0?0116 % * !ve%!ge del!( >0?118 0?0116 > 0?1064 % 4? Running 'peed D":% Running 'peed > di'*!nAe : !ve? %unning *i"e > 6?8 : 0?1064 > 63?<1 D" :%
(#$%"&' *o > 8?30 "in : 60 > 0?1383 %
*% > 8?00 "in :60 > 0?1333 % 1? T%!@A volu"e ve: % x + y q= t r + t o
¿
+0 0.138 + 0.133 99
¿ 365.31 veh / hr 2? /ve%!ge Bou%ne( *i"e * > *o (: > 0?133 0:365?31 > 0?133% 3? /ve%!ge %unning *i"e total delay /ve? del!( > 3600 25.68
>
3600
> 0?00;1% * !ve%!ge del!( >0?133 0?00;1 > 0?125<% 4? Running 'peed D":% Running 'peed > di'*!nAe : !ve? %unning *i"e > 6?8 : 0?125< > 54?01 D" :%
DATA Tra))i' V#*ue+q ,Ve-"-r
X + Y
9quation q: 9astard ;estard
DISCUSSION
A/era0e J#ur!e Tie+t ,-r
tr +¿
t : tr -
y q
A/era0e Ru!!i!0 Tie ,-r
Ru!!i!0 spee$ ,2"-r
t 3 (average delay)
istance +verage running time
/!".7!
!.114
!.1!8/
85.71
58".51
!.155
!.12"7
"/.!1
y using the formula belo, e can estimate the traffic volume of the route at the time.
Traffic Volume, q (
veh x + y )= hr t r + t o
+s calculated using the formula, the traffic volume for the eastard and estard $ourney is /!".7!vehhr and 58".51vehhr respectively. This sho that the traffic volume of vehicle during the eastard $ourney is higher than the estard $ourney and this ill affect the delay time during the eastard is to be higher than estard since the volume of vehicle occupied is bigger.
R)**+*, #((' '+#$"*/( 0 "(. &)**+*, $+(
The running speed beteen the round trip $ourney is not too far apart from each other &everal error may have lead to the inaccuracy of the data calculated. =uman error such as the inaccurate time ta#en and miscalculated number of vehicle contribute to the factor of inaccurate reading. The speed of the vehicle may also affect the calculation since the speed of the vehicle used is not alays moving at a constant speed. The conditions of the route, traffic volume and vehicle movement affect the speed of the vehicle therefore it is not alays constant. =ence, the test should be conducted more than once on the same route thus finding a more accurate reading since the average data recorded can be used instead of only a single table of data.
