The number of Telematic services targeted toward road freight transport, mostly for improving the efficiency of transport related activities have increased in recent years. Interconnected issues such as congestion, fuel consumption, travel time, reliability etc, are treated independently due to the sometimes competitive nature of objectives among service providers. As a result, the services are not developed to facilitate a common level of analysis and comparison. This makes it hard to establish a criterion for generating quantified values that can support analysis for decision makers (potential investors) in selecting the type of services to promote e.g. governmental organizations. This work addresses this issue by proposing an approach for describing services and a set of criteria to generate service societal values under a given set of assumptions. Each service is specified using a range of general to specific dimensions i.e. motivation, usage domain, users, functionalities, and value indicators. Based on the proposed set of criteria, 32 services are discussed, and their societal value quantified and compared for the Swedish heavy good vehicle market. Thus, the work provides an approach toward a common perspective for quantitative analysis of services to influence design and investment decisions. The methodology has been used to estimate the TTS societal values for the Swedish HGV market. The values obtained show a wide variation 14000€ to 25177000€ between various TTSs