Traffic Simulator(RTS) White Paper

Road Simulator (RTS) – Modeling
Road Traffic and Pedestrian Interaction
The SimWalk Road Traffic Simulator (RTS) allows to model all areas where car traffic and pedestrian interaction must be analyzed. Conduct capacity analyses at intersections, ramps, pavements, crossings, intersection corners, roundabouts, metro and station entrances - all in the same SimWalk model. Discover
the full potential of an intermodal simulation to improve transport infrastructure.
SimWalk provides fully intermodal modeling and
analysis capabilities, including car and bus simulation,
to improve transport infrastructures in a comprehensive way. Railway and metro stations, airports and bus
terminals are increasingly subject to capacity problems due to increasing passenger demand. Intelligent
solutions area required also for spaces where cars,
buses and pedestrians are sharing the same space.
RTS Benefits
and simulation of intermodal Õ Õ Modeling
car traffic scenarios of station environments
and urban areas
Car traffic model based on the intelligent
ÕÕ driver
model (IDM)
ÕÕ Flexible traffic control concept
Timing chart controlling road traffic
ÕÕ lights
(red, yellow and green phases)
ÕÕ Preconfigurable car type library
analysis of car and
ÕÕ Comprehensive
pedestrian interaction (delays, densities)
integrated (optional) in all SimWalk
ÕÕ Fully
versions (Airport, Transport, PRO, 360)
Õ 2D and 3D visualization of simulation The SimWalk ‘Road Traffic Simulator’ (RTS) is a microscopic continuous-time traffic flow model, based on the
principles of the intelligent driver model (IDM). The IDM
is a car following model; the decision of any driver to accelerate or to brake depends on her own speed, the position and the speed of the car in front as well as the road
signposts and traffic lights on the own lane.
The RTS module is an add-on to the SimWalk Pedestrian
Simulator, based on an independent traffic engine communicating with the User Interface. It is destined for
small- to medium-sized traffic networks, such as intersections, small urban areas or station environments.
Traffic Control Concepts
The SimWalk Road Traffic Simulator integrates the following traffic control concepts:
The number of cars per minute driving on a lane
ÕÕ (traffic
ÕÕ The start sequence (car creation) of predefined cars
parameters like maximum acceleration, comfortÕÕ Car
able braking deceleration, desired speed, jam distance
and safety time headway
chart controlling road traffic lights (red, yellow
ÕÕ Timing
and green phases) to synchronize multiple intersec-
tions and pedestrian crossings
SimWalk Integration
are used to build pedestrian
Õ Õ Gates
lights for crosswalks
are used to model road lanes,
Õ Õ Tracks
forks, links, and intersections
nodes are used to define start
Õ Õ Track
and destination points as well as road
traffic signs (e.g. speed limit, yield,
stop or lights)
and bumpers) and type of cars (e.g.
car, van, bus, truck...)
lane roads
level crossings
are used to determine the
Õ Õ Vehicles
color and dimension (e.g. body, axles
Formations are used to connect cars
ÕÕ together
(e.g. a van with a trailer)
are used to measure the
Õ Õ Counters
traffic flow rate on single- or multiMeters are used to define priority in
ÕÕ traffic
on intersections and rail-road
Charts are used to show graphic
ÕÕ information
of road traffic (like car
3D Visualization
The Road Traffic Simulator supports the general SimWalk
visualizations in 2D as well as 3D for the impressive rendering of simulation results. The SimWalk 3D modules integrate simulation data, virtual worlds built with 3D software, and car / pedestrian types to comprehensive virtual
traffic simulation. This perfectly enables planners and authorities to visually understand the dynamcis of shared
spaces of cars and pedestrians.
Download SimWalk DEMO:
counts or flow rates)
Savannah Simulations AG
Alex Schmid
Alte Dorfstrasse 24
CH-8704 Herrliberg
Phone: +41 (0)44 790 17 14
[email protected]