3 Flashcards
1
Q
quality of service factors
A
travel time, speed, delay comfort convenience aesthetic design of road number of stops travel time reliability manoevureability safety cost
2
Q
service measures
A
performance measures used to define Level of Service for transport facilities
should reflect travellers perceptions, operating agencies
easily measurable, estimable given conditions
3
Q
service measure for motorways and multilane highways weaving sections ramps TLTW
A
density
speed
flow rates
% time spent following, average travel speed, %FFS
4
Q
capacity of road definition
A
maximum sustainable hourly flow rate drivers can be expected to transverse a section of road during a given time under prevailing roadway, environmental and control conditions
5
Q
base/ideal conditions
A
good weather good visibility no accidents no work zone activity no pavement defects no HV driver population familiar with road
6
Q
what isnt accounted for in LOS
A
roadside parking not base/ideal conditions merging of lanes or narrowing of corridor effects commonly used bus stops FFS<70 or >100km/hr
7
Q
service flow rate
A
maximum hourly rate at which vehicles can reasonably be expected to transverse a segment
