Level of Service

Before calculating Hanoi’s level of service (LOS), the REMON project team had to face the challenge to find a suitable digital street map of Hanoi. Hanoi’s street grid is complex. Plus, in the streets of the ancient quarters different bans on cars and motorcycles are effective which  vary in time of the day and  day of the week.

In order to complement the digital street map, the Vietnamese project partner UTC collected detailed information of the streets under guidance of project partner FU Berlin. A  precise routing is the basis for the REMON app: if, for example, the information about a  U-turn is missing, the app would suggest a route that is remarkably longer. This could influence the acceptance of the app users negatively.

In the meantime, the digital street map of Hanoi  for most areas in the city center, the main roads outside the center, and in the surrounding areas of Hanoi’s airport is completed. Furthermore, the map includes ‘points of interest’, for example ATMs, bus lines and bus stops, schools, kindergartens, as well as hotels and restaurants that have an impact on the traffic and could be interesting for the app users.

The basis for REMON’s real-time traffic information is currently the GPS data from taxis and buses. Based on this data, the REMON project partner DLR calculates the possible travel speed for each road link and presents the results as LoS in the REMON applications.

Example for the transformation of GPS data in LoS. (Source: DLR 2013)

Different colors visualize the real time traffic flow on the map. The green color represents a free traffic flow, yellow indicates slow or heavy traffic flow and the red color is equal to no or restricted traffic flow.