The strategy of delivering modern, high quality public services and promoting competition in the waste management sector leads to formation of private sector participation (PSP) to handle solid waste management in Lagos State. The findings depict that quality of service among the PSP operators recorded high success in the high income areas than those of the low and medium income areas.youtube.com On the average, industry productivity was 6.63 tonnes per day per vehicle. Municipal solid waste management constitutes one of the most crucial health and environmental problems facing governments of African cities.youtube.com This is because even though these cities are using 20-50 percent of their budget in solid waste management, only 20-80 percent of the waste is collected.
More so, there has been often a much smaller stock of environmental and social capital in developing countries. Waste generation nationally is alarming, on the increase with an estimated annual rate of about 0.5-0.7% and current figures ranging from 0.4 to 0.8 Ton per capita per annum. As a result of the failures recorded by local governments in solid waste management, many state governments have put in place bodies that are regional in outlook (i.e., covering more than one local government). Lagos State Waste Management Agency (LAWMA). The agency is faced with the task of effectively managing the waste of about 18 million residents of the state and delivering a clean environment through transportation, management of waste disposal sites, and, much recently, recycling. LAWMA, therefore, went into public—private partnership initiative to run the scheme.
It is public in the sense that LAWMA serves as the regulators to both resident and the private partners. While the PSP carries out the services delivery, the LAWMA fixes the prices for residents and establishments. Charges for waste collection are based on direct charges to household and other establishments. The amount to be paid for waste collection is not based on the volume of the waste generated rather on the location and type of households/establishments. The services have been made to be patronized by all Lagos residents under the state law as a pathway to keep the state clean.youtube.com This situation has also been compounded by the reluctance of some resident households to pay for waste disposal services for reasons of poverty and not willing to pay.
In light of this, the state government has contracted the solid waste collection and disposal to the private sector operators with the hope that a clean Lagos can be sustained at no extra cost implication to the government. Arising from the foregoing, the study intendsto analyze the performance of the private sector participation in domestic solid waste management operations in Lagos State. Specifically, it evaluates the general characteristics of private sector participation contractors in domestic solid waste management and the users in Lagos State. It ties together concern for the carrying capacity of natural systems with the social challenges faced by humanity.
The concept of sustainable development has in the past most often been broken out into three constituent parts: environmental sustainability, economic sustainability, and sociopolitical sustainability. The idea of sustainability has its roots in systems theory. Systems are sets of interacting and adaptive structures and processes which together produce functional outputs and outcomes. They are characterized by their capacity to maintain their functional outputs and outcomes within desirable parameters while adjusting and adapting to variations in inputs. Feedback mechanisms adjust system processes and structures in response to input variation to maintain outputs and outcomes. Change is an inherent feature of systems.
While systems are able to adapt to change in inputs, they remain relatively sustainable. For human service organizations, programs are organized sets of inputs (people, facilities, and equipment) which carry out strategies (processes) designed to achieve specific outputs and outcomes. The three key attributes of sustainability are the benefits that are produced over time for individuals and populations, the contingencies which cause the benefits, and the costs of the program resources that are required to achieve them. This sustainable development ideas need to be well integrated into solid waste management and other environmental intervention programmes. Solid waste management (SWM) is an important environmental health service and is an integral part of basic urban services. The former is closely connected to the neoliberal doctrine proclaiming a resurgence of the market and a reduction of state control.
These ideas give rise to the demand for an effective management system. An effective waste management system is a veritable way to ensuring economic development. In Nigeria, one state that has really championed the course of environmental sanitation through effective waste management is Lagos State. Against the backdrop of being regarded as one of the dirtiest states by the world press after the celebration of FESTAC ’77, this betterment was achieved through public-private partnership of LAWMA and PSP operators. LAWMA engages, coordinates, and evaluates the activities of the private sector participant (PSP) in the municipal solid waste collection. It is of importance to examine the opportunities and challenges posed by benefit distribution of environmental service delivery with regard to PSP operations in Lagos State. Interventions can only be successful in the long term if their aims and activities are achieved.
The state private sector operation waste management project needs to be evaluated of the quality of service provided to its consumers and challenges facing its sustenance. A number of earlier studies on solid waste have been carried out in Ghana. In most cases, the economic tools used were percentages, severity index, chi-square, and ordinary least square models. There have been rarely a few or no studies on the performance assessment of the private sector participation operation of Lagos State. The present study is intended to fill this gap. The result generated from this study will also be necessary for policy intervention in Lagos State and the country at large. The study area is Lagos State. The state is made up of 20 local government areas. It has a land size of 999.6 km2 and a population of about 9,113,505 (2006 Population Census Commission).
Lagos State has a total of 337 domestic private sector participations in solid waste management, serving all residential areas in the state. The private sector participation operators are well distributed in the local government areas (LGA(s)) and the number of operators in an area varies based on the population and the need of the area. Primary data were sought for, through the use of structured questionnaire and interview to ascertain the authenticity of the responses. Data were collected from domestic waste management operators and users of the services provided by the operators. Stratified sampling technique was employed to explore the heterogeneous population of the study area. The state was stratified based on the socioeconomic group (high, medium, and low income economic groups). One local government area was randomly selected from each stratum.
The last stage involved a random selection of households/residents and PSP operators in a ratio proportional to the size of the operators in the local government areas selected. With regard to socioeconomic group, Eti-Osa local government area (LGA), Ikeja LGA, and Alimosho LGA were selected from high, medium, and low income groups, respectively, in the state. The economic tools employed in this study include the following. Descriptive statistics such as percentages were used to evaluate the general characteristics of the private participation contractors and residents. The performance of the service providers were assessed using productivity analysis and quality of service assessment (score card). Productivity analysis was carried out using productivity analysis ratio and industry average productivity ratio was used as the base of comparison. Quality of services was assessed using severity index.
Productivity was based on the last 24 months production. The severity index (SI) was calculated based on the following equation. Consider where is the index of a class, constant expressing the weight given to the class; is the frequency of response; and described as below; are the frequencies of response corresponding to , , , , and , respectively. The productivity of a company is defined as the weighted average of individual vehicles for a period . It is expressed as follows: where productivity of company during the period , ; ; maximum output capacity for vehicle during the period , .
Productivity ratio (PR) is the sum of the productive capacity of a company over a period of time divided by the number of productive inputs. Consider where productive inputs used for production by operator . Therefore, the industry average productivity ratio , where productivity of company at the particular period , productive inputs used by operators in the sample at the particular period , and number of operators in the sample, where . Probit model was used to analyse the relationship between productivity and factors influencing it among the private sector partnerships in domestic solid waste management in the state.
Probit regression, also called a probit model, is used to model dichotomous or binary outcome variables. In the probit model, the inverse standard normal distribution of the probability is modelled as a linear combination of the predictors: where the dependent variable is a binary response. It takes only two values, 0 and 1: and is the explanatory variables likely to influence . Hence, productivity of company belonging to category (1 is for above average productivity per day; 0, otherwise). The marginal effects of the function are generated. Marginal effect is the result of a unit change in the explanatory variable on the probability given that all other explanatory variables are constant. It is the net effect holding the other variable at its means.
Hence, marginal effects are partial derivatives of the probabilities with respect to the explanatory variables evaluated at their sample means. Consider The index is the th observation of the independent variable. The marginal effects depend on (typically the means). The coefficients and marginal effects have the same signs because . The privatization of solid waste collection has given rise to the spring up of quite large number of operators in the state. Among the contractors interviewed, 67% were from the low income area in Alimosho LGA, 20% from the medium income area in Ikeja LGA, and 13% from the high income area in Eti-Osa LGA.
All are operating in different size or capacity in terms of manpower and available equipment. The strength and quality of staff with available facilities are often an indication of firm’s waste collection capacity. All the firms have offices in their locations; hence it becomes easier for their customers and monitoring agencies to locate them in case of difficulties in service provisions. All the service providers use compaction trucks of about five tonnes of capacity made available by the Lagos State government. The firms either own the trucks or in a few cases take on lease. The system of waste collection is mainly door-to-door collection. In low income area and part of medium income area, when the collection truck arrives on the streets to be served, it alerts the households by horning.
In the high income areas, waste is collected by the crews from the waste bin kept in front of the house. Waste collection frequency varies from one area to another. Around 73% of interviewed contractors reported that collection is done once per week in a particular area. However, they admitted that most of the collection frequency depends on the mechanical condition of collection trucks and on the agreement between the contractors and the residents of the area. It is observed that most collection trucks purchased from LAWMA are new except few fairly used ones. The monthly operating cost of the PSP operators varies from ₦ 500,000 to ₦ 900,000 in low income area, from ₦ 600,000 to ₦ 800,000 in middle income area, and from ₦ 640,000 to ₦ 1,000,000 in higher income area.
Each contractor caters for varying number of houses in coverage areas of wards. In the low income area, contractors are in charge of houses between 180 and 231; in medium income area, it is between 192 and 230 houses; and in high income area, it is between 125 and 240 houses. Payment for service rendered in all the areas is done mainly through issuance of bills and paying through banks. Around 60% of the contractors claimed payment through this means and 40% cash. Contractors faces the challenges of delayed or refusal of payment. Only few operators recover more than 50% of their user fees.
The user fee depends on property value and area in the state. User charges range from ₦ 1000 to ₦ 1500 per month per house in low income area, from ₦ 1500 to ₦ 1800 per month in medium income area, and from ₦ 1500 to ₦ 2000 in high income area. Wastes collected are disposed at the dump site.youtube.com No technology for waste minimization is employed; rakes and shovels are used to clean up waste at the point of collection. Among the residents/users sampled, 47% were male and 53% were female with an average age of 40 years. 78% of the respondents were married, having an average family size of 5 members. About 45% of them were educated up beyond secondary school education while about 30% were secondary school certificate holders.
The educated ones earn an income between ₦ 20,000 and ₦ 1,000,000 and above depending on the area. All users sampled prefer and accept the door-to-door waste collection system. The quality of waste collection service was assessed in two ways. First, by rating companies (on a five-point scale from very poor to very good) for service quality attributes (reliability of collection, waste overflow, and sanitary conditions at bin/container locations and response to customer complaints and crew attitude at waste collection). Second, the residents were asked to indicate service satisfaction by responding as satisfied or not satisfied to the quality of service provided in the study area. In a customer satisfaction survey, service satisfaction is the customers’ perceptions of service received (perceived quality) compared to their expectations of the desired service quality. Table 1 shows the results of the quality of service across the cities.
Residents across the income areas perceived some level of quality of service provided by PSP operators in the areas. As shown in Figure 1, around 56% of users in the low income areas and around 61% of users in high income area appear to be satisfied with the current quality of service provided by the domestic solid waste contractors. Productivity is an efficiency measure of the performance of operators. The productivity of each operator was computed using the sum total of the weighted average individual vehicle waste collected. The productivity ratio is estimated using the ratio of total output of waste collected by each operator in tonnes to operating inputs used (vehicles).
Table 2 shows the performance distribution of all 30 companies surveyed in the various income areas based on the average industry performance. The industry average productivity was 6.63 tonnes per day per vehicle and 18 out of 30 companies had values above this average. In low income areas, companies C9, C10, C11, C12, C14, C15, C16, C17, C19, C20, and C23 performed below average, while C5, C6, C7, C8, C13, C18, C21, C22, and C24 performed above average. In medium income areas, C27 is below average and C25, C26, C28, C29, and C30 performed above average while companies C1, C2, C3, and C4 performed above average in high income areas. This implies that companies with vehicle productivity above average had a higher average daily quantity of waste collected than those companies with productivity below average. Figure 2 shows each company’s productivity capacity in the survey period.
In the study area, the relationship between productivity performance of the service provider companies and their influencing factors (derived from the framework of Wilson et al. The result showed that years of service operation, number of trips per day, number of time vehicle/truck serviced per month, and adherence to regulatory arrangement are significant factors influencing the productivity performance of the PSP domestic solid waste contractors. The result further depicts that a one year increase in the years of service provision will bring about 15% increase in productivity of the service provider’s company. One more time of servicing operators truck per month will necessitate 77% increase in productivity of providers. The common constraints facing the PSP solid waste contractors include customer challenges in the low income area (75%), medium income area (21%), and high income area (3%). Such challenges include debts and delayed payments of user [https://www.findcohost.com/ Airbnb Co-hosts Fees].
Poorly managed dump site constitutes a greater challenge at rainy season as it results in incurring more cost on repairs and services of collection trucks. Other constraints include poor policy implementation and infrequent monitoring of quality of service provision of contractors in the various areas.youtube.com In this study, the performance of the private sector companies was analyzed in terms of quality of services provided and a company’s productivity. Constraints associated with companies’ performance were also examined. The responses from residents/users on quality of service on PSP operations can be said to be highly effective in the state. While the quality of service is rated highest/highly effective in high income area, it is moderate in medium and low income areas, signifying that there is a difference in quality of service across the incomes groups in the state.
Difference in productive performance was explored by analyzing two groups of companies: those below and above average performance using a criterion of industry average. Result depicts that 18 out of 30 companies had values above average productivity value of 6.63 tonnes per day per vehicle. While most companies in the medium and high income areas performed above average, most companies in low income areas performed below average. The factors which explain the difference in productivity by the individual companies included the years of experience in operation, the number of trips made per day, number of time vehicle serviced per month, and adherence to regulatory arrangement.
Hence effective performance can be constrained by shortage of funds by operators, poorly managed dump site at rainy season, and poor service monitoring and policy implementation.youtube.com To enhance effective productivity, it is recommended that all PSP operators should strictly adhere to the regulatory arrangement and policies governing the operations, ensuring frequent waste collection and increasing the number of daily trips. It is paramount that stiffer and healthy competition among the PSP operators is encouraged by LAWMA for the programme to be sustainable. Also, there should be public forum where PSP service providers meet regularly to find ways of overcoming challenges facing the business in their areas of operation. Above all, government should make and implement favorable policies targeted to sustainability of the intervention.youtube.com LAWMA as a body should take full responsibility in adequately maintaining dump sites and seek means of promoting PSP operations into waste minimization and recycling technology for better use of waste.
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