The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences. Vol. XXXVII. Part B5. Beijing 2008 
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systems (terrestrial laser scanning and aerial images). An 
example of the combination of 3D polylines of roofs from aerial 
images and 3D polylines of facades from terrestrial laser 
scanning data is presented in Figure 13. 
Figure 14. Combination of data from two different sources: 3D 
polylines of roofs based on aerial images and 3D polylines of 
facades from terrestrial laser scanning data 
7. 3D MODELLING OF CITY MODEL AND 
LANDMARKS 
The modelling group started simultaneously with the facade 
mapping to model landmarks from laser scanning data. 
Therefore, the mapping group measured 3D polylines of the 
landmark, which were used for the 3D modelling with 
Autodesk® 3ds Max® software. 
Figure 15. Photo-realistic and detailed 3D model of the 
“German Fountain” (generated with 3D Studio) 
In December 2007 the group started to generate a 3D city 
model of the Historic Peninsula as a so called block model 
(LoDl = Level of Detail 1) using just cadastre data (Fig. 16), 
which could be finished after three months. Currently, the 
modelling group is producing a 3D city model in LoD2 (Fig. 17) 
by combining the block model with the roofs, mapped by the 
roof mapping group. 
Figure 16. Part of the 3D city model in LoD 1 (block model 
generated from cadastre data) 
Figure 17. Part of the 3D city model in LoD 2 (roof model 
generated from the block model) 
8. CONCLUSION AND OUTLOOK 
With the Historic Peninsula project BIMTAS was able to create 
a modem production environment with high-end technology 
and well-trained personnel, which could efficiently perform 
static and mobile terrestrial laser scanning for the entire area of 
the Historic Peninsula within 15 months, from which the 
dominating part has been scanned by the mobile system within 
three month. In particular, the requirements of the projects with 
respect to quality and deadlines for data delivery drove the 
parameters for optimising the production to ensure that a 
technical solution was always found for the requirement to 
speed up the data acquisition. Thus, the change from static to 
mobile terrestrial laser scanning for data acquisition 
significantly speeded up the scanning. 
BIMTAS learned many lessons concerning project management 
and tuning of technology to manage the requirements, so that 
the company is able to run similar projects elsewhere. However, 
the key for successful projects is still the highly educated and 
trained personnel, who learned their skills by working for such 
a project as the Historic Peninsula, and efficient project 
planning.